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This is a comparison of both historical and current web browsers based on developer, engine, platform(s), releases, license, and cost.

General information

Basic general information about the browsers. Browsers listed on a light purple background are discontinued. Platforms with a yellow background have limited support.

Browser	Developer	Layout engine	Platform	Latest release		License	Cost (USD)
				Version	Date
Amaya (discontinued)	W3C, INRIA	Custom	Linux	11.4.4	2012-01-18	W3C	No cost
			macOS
			Windows
AOL Explorer (discontinued)	America Online, Inc	Trident	Windows	1.5	2006-05	Proprietary	No cost
Arora (discontinued)	Benjamin C. Meyer	WebKit	BSD	0.11.0	2010-09-27	GPL-2.0-or-later	No cost
			Linux
			Haiku
			macOS
			OS/2
			Windows
Avast Secure Browser	Avast Software	Blink	Android	7.1.3	2022-11-24	Proprietary	No cost
			iOS	4.9.0	2022-10-25
			macOS	118.0	2023-10-31
			Windows	119.0	2023-11-13
Basilisk	Basilisk-Dev	Goanna	Linux	2024.11.23	2024-11-23	MPL-2.0	No cost
			macOS
			Windows
Brave	Brave Software Inc.	Blink	Android	1.71.114	2024-10-17	MPL-2.0	No cost
			iOS	1.71.114	2024-10-17
			Linux	1.71.114	2024-10-17
			macOS	1.71.114	2024-10-17
			Windows	1.71.114	2024-10-17
Camino (discontinued)	The Camino Project	Gecko	macOS	2.1.2	2012-03-14	Tri-license	No cost
Chrome	Google	Blink	Android	131.0.6778.39	2024-11-12	Proprietary	No cost
			iOS	131.0.6778.73	2024-11-12
			Linux	131.0.6778.69/70	2024-11-12
			macOS	131.0.6778.69/70	2024-11-12
			Windows	131.0.6778.69/70	2024-11-12
Chromium	The Chromium Project	Blink		(built nightly)		BSD	No cost
Cliqz (discontinued)	Cliqz GmbH	Gecko	Android	1.10.1	2021-06-14	MPL-2.0	No cost
			iOS	3.7.2	2021-06-10
			macOS	1.38.0	2020-07-22
			Windows	1.38.0	2020-07-22
Comodo Dragon	Comodo Group	Blink	Windows	119.0.6045.200	2023-12-07	BSD	No cost
Comodo IceDragon (discontinued)	Comodo Group	Gecko	Windows	65.0.2.15	2019-06-19	MPL-2.0	No cost
Dillo	The Dillo team	Custom	BSD	3.1.1	2024-06-08	GPL-3.0-or-later	No cost
			Linux
			macOS
			Unix
			Windows
Dooble	Dooble Team	Blink	BSD	2024.08.20	2024-08-20	BSD-3-Clause	No cost
			Linux
			macOS
			Unix
			Windows
Edge	Microsoft	EdgeHTML Blink	Android	126.0.2592.117	2024-07-23	Proprietary	No cost
			iOS	126.0.2592.120	2024-07-24
			Linux	130.0.2849.68	2024-10-31
			macOS	130.0.2849.68	2024-10-31
			Windows	130.0.2849.68	2024-10-31
ELinks	Baudis, Fonseca, et al.	Fork of Links	BSD	0.17.1.1	2024-10-05	GPL-2.0-only	No cost
			Linux
			macOS
			Unix
Falkon	David Rosca	Blink	BSD	24.05.2	2024-07-04	GPL-3.0-or-later	No cost
			Haiku
			Linux
			macOS
			Unix
			Windows
Firefox	Mozilla Foundation	Gecko Gecko w/Servo	Android	133.0	2024-11-26	MPL-2.0	No cost
			BSD
			iOS
			Linux
			macOS
			Unix
			Windows
Flock (discontinued)	Flock Inc	WebKit	BSD	3.5.3.4641	2011-02-01	Proprietary	No cost
			Linux
			macOS
			Windows
Galeon (discontinued)	Marco Pesenti Gritti	Gecko	BSD	2.0.7	2008-09-27	GPL	No cost
			Linux
			macOS
			Unix
GNOME Web (Epiphany)	Marco Pesenti Gritti	WebKit	BSD	45.1	2023-11-06	GPL-3.0-or-later	No cost
			Linux
			macOS
			Unix
GNU IceCat	GNU	Gecko	Android	115.12.0	2024-06-10	MPL-2.0	No cost
			Linux
			macOS
			Windows
iCab	Alexander Clauss	WebKit	macOS	6.2.3	2024-07-15	Proprietary LGPL	Depends
Internet Explorer (discontinued)	Microsoft, Spyglass	Trident	Windows			Proprietary	Bundled
Internet Explorer for Mac (discontinued)	Microsoft	Tasman	macOS	5.2.3.3.2.1.1.3.5.6.7.9.0	2003-06-16	Proprietary	No cost
K-Meleon	Dorian, KKO, et al.	Goanna	Windows	76.4.7	2023-04-07	GPL	No cost
Konqueror	KDE	KHTML WebKit	BSD	24.11.90	2024-11-28	GPL-2.0-or-later	No cost
			Linux
			macOS
			Unix
			Windows
Ladybird	Ladybird Browser Initiative	LibWeb	Android			BSD-2-Clause	No cost
			BSD
			Haiku
			Linux
			macOS
Links	Patocka, et al.	Custom	BSD	2.30	2024-07-27	GPL-2.0-or-later	No cost
			Haiku
			Linux
			macOS
			Unix
			Windows
Lunascape	Lunascape Corporation	Gecko Trident WebKit	Android	13.3.0	2023-06-14	Proprietary	No cost
			iOS	13.3.3	2023-08-28
			macOS	0.27.0	2023-06-20
			Windows	0.27.0	2023-06-20
Lynx	Montulli, Grobe, Rezac, et al.	Fork of libwww	BSD	2.9.2	2024-05-31	GPL-2.0-only	No cost
			Haiku
			Linux
			macOS
			Unix
			Windows
Maxthon	Maxthon International Limited	Blink Trident	Android	7.0.2.2600	2023-06-29	Proprietary	No cost
			iOS	7.1.9	2023-08-22
			Linux	1.0.5.3	2014-09-09
			macOS	5.1.70	2022-09-29
			Windows	7.1.7.8100	2023-12-11
Midori	Christian Dywan, et al.	WebKit	Android	3.0.07	2023-10-26	LGPL-2.1-or-later	No cost
			Linux
			macOS
			Windows
Mosaic (discontinued)	Marc Andreessen and Eric Bina, NCSA	Custom		3.0	1997-01-07	Proprietary	Depends
Mozilla Application Suite (discontinued)	Mozilla Foundation	Gecko		1.7.13	2006-04-21	Tri-license	No cost
Netscape (v.6–7) (discontinued)	Netscape Communications Corporation, AOL	Gecko		7.2	2004-08-17	Proprietary Tri-license	No cost
Netscape Browser (v.8) (discontinued)	Mercurial Communications for AOL	Gecko Trident		8.1.3	2007-04-02	Proprietary Tri-license	No cost
Netscape Communicator (v.4) (discontinued)	Netscape Communications	Fork of Mosaic		4.8	2002-08-22	Proprietary	No cost
Netscape Navigator (v.1–4) (discontinued)	Netscape Communications	Fork of Mosaic		4.0.8	1998-11-09	Proprietary	No cost
Netscape Navigator 9 (discontinued)	Netscape Communications (division of AOL)	Gecko		9.0.0.6	2008-02-20	Proprietary Tri-license	No cost
NetSurf	The NetSurf Developers	Custom	BSD	3.11	2023-12-28	GPL-2.0-only	No cost
			Haiku
			Linux
			macOS
			Unix
			Windows
OmniWeb (discontinued)	The Omni Group	WebKit	macOS	5.11.2	2012-07-20	Proprietary LGPL	No cost
Opera	Opera Software	Presto Blink		115.0.5322.119	2024-12-23	Proprietary	No cost
Opera Mobile	Opera Software	Presto WebKit for 14 Blink	Android	63.3.3216.58675	2021-04-23	Proprietary	No cost
			iOS	3.1.0	2021-06-10
			Symbian	12.0.22	2012-06-24
			Windows Mobile	10.0	2010-03-16
Origyn Web Browser	Sand-labs	WebKit	AROS	1.25	2016-04-02	BSD-3-Clause	No cost
			AmigaOS 4.x	1.23r5	2022-01-02
			MorphOS	1.24	2014-04-15
Pale Moon	Moonchild Productions	Goanna	Linux	33.5.0	2024-12-05	MPL-2.0	No cost
			Windows
qutebrowser	Florian Bruhin	WebKit QtWebEngine	BSD	3.3.1	2024-10-12	GPL-3.0-or-later	No cost
			Linux
			macOS
			Windows
Safari	Apple Inc.	WebKit	iOS			Proprietary LGPL	Bundled
			macOS
SalamWeb	Salam WebTechnologies DMCC	Blink	Android	4.6.0.48	2020-09-29	Proprietary	No cost
			iOS	4.6.3	2020-09-29
			macOS	4.6.3.589	2020-09-24
			Windows	4.5	2020-07-31
SeaMonkey	SeaMonkey Council	Gecko	BSD	2.53.19	2024-09-04	MPL-2.0	No cost
			Linux
			macOS
			Unix
			Windows
Shiira (discontinued)	Happy Macintosh Developing Team	WebKit	macOS	2.3	2009-08-11	BSD-3-Clause	No cost
Sleipnir	Fenrir Inc.	Blink Trident	Android	3.7.5	2024-04-15	Proprietary	No cost
			iOS	4.14.2	2023-12-21
			macOS	4.7.9	2021-03-02
			Windows	6.5.5	2024-03-14
SRWare Iron	SRWare	Blink	Android	102.0.5200.0	2022-07-06	Proprietary	No cost
			Linux	118.6000.0	2023-12-05
			macOS	118.0.6000.0	2023-12-04
			Windows	129.0.6550.0	2022-04-29
surf	suckless.org	WebKit	BSD	2.1	2021-05-08	MIT	No cost
			Linux
			Unix
			Windows
Torch Browser (discontinued)	Torch Media	Blink	macOS	69.2.0.1713	2020-09-30	Proprietary	No cost
			Windows
Uzbl (discontinued)	Dieter Plaetinck	WebKit	Unix-like	0.9.1	2016-10-27	GPL-3.0-only	No cost
Vivaldi	Vivaldi Technologies	Blink	Android	7.0 (3505.121)	2024-12-13	Proprietary	No cost
			Linux	7.0 (3495.27)	2024-12-19
			macOS	7.0 (3495.27)	2024-12-19
			Windows	7.0 (3495.27)	2024-12-19
Waterfox	Alex Kontos	Gecko	Android	6.5.2	2024-11-26	MPL-2.0	No cost
			Linux
			macOS
			Windows
WebPositive	Haiku	WebKit	Haiku	1.9.11	2024-02-05	MIT	No cost
WorldWideWeb (Nexus) (discontinued)	Tim Berners-Lee	Custom	NeXTSTEP	0.17	1994	Public domain	No cost
w3m	Akinori Ito	Custom	BSD	0.5.3	2011-01-15	MIT	No cost
			Linux
			macOS
			Unix
			Windows
Yandex Browser	Yandex	Blink	Android			Proprietary	No cost
			Linux
			iOS	23.9.1.439	2023-09-08
			macOS
			Windows
Browser	Developer	Layout engine	Platform	Latest release		License	Cost (USD)
				Version	Date

1. ^ MPL-1.1, GPL-2.0, LGPL-2.1
2. Chromium, on which Google Chrome is based, is open source; the features Google adds to Chrome (such as H.264 and ACC decoding, built-in Adobe Flash, and an auto-updater system, among other things) are closed-source. See Chromium (web browser) § Differences from Google Chrome and Google Chrome's Terms of Service for more info.
3. EdgeHTML until 2020.
4. Blink since 2020.
5. Chromium, on which Microsoft Edge is based, is open source; the features Microsoft adds to Edge are closed-source. See Chromium (web browser) for more info.
6. Gecko before v57.
7. Gecko with Servo, v57 & after.
8. Proprietary as of 3.0.
9. ^ Browser.
10. ^ WebKit.
11. No cost, with Pro at cost ($20).
12. Included with Windows.
13. No cost for non-commercial use.
14. ^ There are five different products which all carry the name Netscape: Netscape versions 1 to 4, properly called Netscape Navigator, was a browser based on the original Netscape engine. Netscape 4 also was available as an Internet suite, properly called Netscape Communicator. Netscape 6 and 7 was a new Internet suite based on the Gecko engine and the Mozilla Application Suite user interface. Netscape 8, properly called Netscape Browser, was a distinct browser based on Firefox that could use either the Gecko (Firefox) or Trident (Internet Explorer) engine. Netscape resumed use of the Navigator name from Netscape Navigator 9.0 beta 1. See Netscape for more info.
15. ^ Gecko.
16. Browser & Trident.
17. Presto from 2003 until 2013.
18. Blink since 2013, Opera 15.
19. Presto until 12.16.
20. Blink from 15.0.
21. Included with macOS, iOS and iPadOS.

Operating system support

Browsers are compiled to run on certain operating systems, without emulation.

This list is not exhaustive, but rather reflects the most common OSes today (e.g. Netscape Navigator was also developed for OS/2 at a time when macOS 10 did not exist) but does not include the growing appliance segment (for example, the Opera web browser has gained a leading role for use in mobile phones, smartphones, the Nintendo DS and Wii, and Personal Digital Assistants, and is also used in some smart TVs). Both the web browser and OS means most recent version, example: Windows 11 with Internet Explorer 11.

1. Google Chrome is not available for PowerPC.
2. Dillo is included in some Linux distributions, i.e. Damn Small Linux and Feather Linux.
3. Included in Windows 10 and 11.
4. Microsoft Edge is included in Windows 10 and also supported on Windows 7 and later.
5. ^ Most Linux distributions which include a graphical user interface include a version of Firefox or a rebranded version of Firefox such as GNU IceCat.
6. Binaries are not released.
7. Dropped 5.2.
8. Dropped 5.0. Internet Explorer for UNIX was available for Solaris and HP-UX.
9. Opera Mini and Coast are available for iOS.
10. Dropped 5.1.7.

Browser features

Information about what common browser features are implemented natively (without third-party add-ons).

1. ^ Not available on mobile.
2. Starting with version 4, Google Chrome can disable Cookies, Images, JavaScript, Plugins, Popups, and Geolocation individually.
3. ^ Lacks search toolbar, but search URL autocompletion provided via addressbar.
4. ^ There is no online update facility built into IE, but it gets updated by Windows Update when enabled. As of Version 10 automatic silent update is the default setting in Internet Explorer. In Microsoft Edge, the option to disable automatic updates via the about dialog is not included.
5. Available as a PIM plugin which is disabled by default, but it is part of default installation.
6. ^ Notification only.
7. Firefox 3.5 adds the Privacy mode. Older versions of Firefox can use the Stealther extension.
8. ^ Mozilla based browsers like Firefox, SeaMonkey and Flock can handle per-site settings for cookies, pop-ups, add-on installs and images. For more settings, an add-on is needed ~ for example, NoScript.
9. Internet Explorer 10 supports spell checking.
10. Internet Explorer 8 supports InPrivate Browsing.
11. ^ Through the Privacy toolbar, K-Meleon Versions 1.5 and 1.6, can individually disable Cookies, Images, JavaScript, Popups, and Plugins (e.g. Flash and Java).
12. For the download manager kdenetwork needs to be installed.
13. Konqueror can handle per-site settings for cookies, pop-ups, JavaScript, Java and NPAPI modules (e.g. Flash).
14. ^ Depending on user's choice of rendering engine.
15. Lynx is able to edit text with an external editor, which can provide spell checking.
16. OmniWeb supports per-domain settings of options including support for disabling scripting, ad blocking, java and cookies. These settings only work on top level domains.
17. Opera versions before 15 had bookmarks. Newer Opera versions use a different concept called "Stash" instead.
18. Opera can auto-complete forms with your personal information and website usernames. Also there is extension AutoComplete Archived 25 July 2014 at the Wayback Machine which can complete forms with form history.
19. ^ Developers distribute patch enabling this functionality.
20. This functionality is handled via third-party software by browser's design.
21. ^ This browser allows choosing a custom cookie jar, making cookies from other sessions unavailable to new session.
22. In many integrated password saving tools there are often leaks that make them unsafe.

Accessibility features

Information about what common accessibility features are implemented natively (without third-party add-ons). Browsers that do not support pop-ups have no need for pop-up blocking abilities, so that field is marked as N/A.

1. ^ A more complete list of Pop-Up blockers and addons / programs are in the following article List of pop-up blocking software.
2. ^ Page zooming is different from text resizing, as it resizes not only characters, but also multimedia objects and web page layout.
3. ^ "Mozilla Developer Network – Using tab-modal prompts". Developer.mozilla.org. 3 February 2011. Archived from the original on 19 October 2012. Retrieved 23 May 2012.
4. The option "Do not allow any site to show pop-ups" in Google Chrome, which is the default, actually allows sites to show pop-ups which are not considered harmful.
5. Feature was intentionally removed via regular patch update, due to poor impact on performance.
6. Ad filter support can be added by installing an extension such as AdSweep, AdThwart or Adblock Plus.
7. ^ Although text browsers don't have dialog windows, their prompts behave as modal dialogs – block the input until answer is received.
8. Requires building with "NONBLOCK_JS_DIALOGS" compile flag enabled; may cause crashes: .
9. ^ Most Gecko browsers have options to block chosen images and cookies. Extended Ad filter support can be added by installing an extension such as Adblock Plus.
10. "Bug 59314 – JavaScript alerts should be content-modal, not window-modal". Bugzilla.mozilla.org. Retrieved 23 May 2012.
11. Epiphany supports AdBlock as an official extension, in the epiphany-extensions package.
12. IE6 had no tabbed browsing support.
13. IE6 included pop-up blocking with Windows XP Service Pack 2
14. Full-text history search is available through a Windows Search iFilter
15. Opera 9 introduced a content blocker for webpages (Archived 9 February 2006 at the Wayback Machine). Earlier releases support wildcard protocol/domain/path and filetype blocking using a filter.ini file. ("Opera browser: Blocking unwanted ads and other cr*p using URL filtering". Archived from the original on 12 January 2013. Retrieved 12 April 2017.) More advanced Ad filtering for Opera can also be done with external software.
16. Does not allow selective blocking of pop-ups. Safari can only block all pop-ups, or none.
17. Ad filter support can be added by installing extensions.Archived 1 July 2008 at the Wayback Machine
18. Page zooming supported in the iPhone version of Safari. Screen zooming is built into macOS.
19. Only Mac.
20. Full-text history search is available through Spotlight, a feature of the macOS operating system.
21. ^ This functionality is handled by third-party software by browser's design.

Accessibility features (continued)

Information about what common accessibility features are implemented natively (without third-party add-ons).

1. Font smoothing or font rasterization is arguably an accessibility feature affecting how the fonts are rendered and font readability. Also referred as ClearType or TrueType
2. ^ On Mac systems, gestures are available systemwide via multitouch sensing on trackpads and mice.
3. ^ On macOS, text-to speech and speech recognition are available systemwide and is available from menu in native Cocoa browsers.
4. ^ Google Chrome can be given these features using extensions like smooth gestures, speechify and voice control for google chrome.
5. ^ TTS in Internet Explorer and Microsoft Edge is available through the operating system Speech API. For TTS, SAPI takes text as input and uses the TTS engine to output that text as spoken audio. This is the same technology used by the Windows accessibility tool, Narrator. SAPI and an English TTS engine have been embedded in all Windows operating systems since the release of Windows XP.
6. ^ Internet Explorer and Microsoft Edge can be controlled by applications which use the operating system Speech API. A built-in application called Windows Speech Recognition ships with Windows Vista and later client versions.
7. ELinks 0.12 supports spatial navigation.
8. Available as of this commit.
9. Supports as of v1.7.0: https://github.com/QupZilla/qupzilla/issues/458
10. Available as a Mouse Gestures plugin which is disabled by default, but it is part of default installation.
11. Doug Turner, the Minimo lead developer, has introduced spatial navigation to some special Firefox builds "Adot's notblog* "firefox, cats, mars, and more": Spatial navigation rocks". Archived from the original on 22 April 2005. Retrieved 20 April 2005.. It may build as a default part of Firefox "Spatial Navigation in Mozilla". Archived from the original on 22 April 2005. Retrieved 20 April 2005..
12. ^ Mouse gesture support can be added by installing extensions like All-in-One Gestures (Firefox-only) and Mouse Gestures .
13. Firefox works with a number of screen readers such as JAWS and Microsoft Speech API through extensions.
14. Web supports mouse gestures as an extension from the official extensions package.
15. Internet Explorer 8 supports caret browsing.
16. Mouse gesture support is available via plug-ins, i.e. Mouse Gestures for Internet Explorer or Easy Go Back.
17. Mouse gesture support is available system-wide in KDE
18. Text-to speech support depends on the kttsd application in the kdeaccessibility package.
19. "opera : a sort of caret navigation can be enabled by a button or a shortcut". Archived from the original on 1 November 2006. Retrieved 16 July 2009.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
20. ^ Only Mac.
21. On macOS systems, caret navigation (called "Full Keyboard Access") can be enabled systemwide.
22. Mouse gesture support can be added by installing extensions like Mouse Gestures Suite (Seamonkey-only) .

Web technology support

Information about what web standards, and technologies the browsers support, except for JavaScript. External links lead to information about support in future versions of the browsers or extensions that provide such functionality.

1. ^ CSS 2, a W3C recommendation since 1998, is the current stable version of CSS, nevertheless, CSS 2.1 corrects a few errors in CSS2 (the most important being a new definition of the height/width of absolutely positioned elements, more influence for HTML's "style" attribute and a new calculation of the 'clip' property), and adds a few highly requested features which have already been widely implemented. CSS 2.1 is derived from and is intended to replace CSS 2. Conformance criteria are detailed at the W3C website. (CSS 3 is only in draft status at present.) For more detailed information please see comparison of layout engines (CSS).
2. ^ Frames and frame sets are obsolete and non-conforming in HTML5. They should not be used by authors.
3. ^ LINK as a navigational aid, as distinct from non-navigational uses of LINK.
4. ^ XHTML is based on HTML but is an application of XML, which means that XHTML must be stricter than equivalent HTML code. XHTML is meant to be read by an XML parser but for backward compatibility reasons can also be parsed as HTML; this table only notes the browsers that are able to parse XHTML as XML. For more detailed information please see comparison of layout engines (XHTML).
5. ^ Available with the MathPlayer plugin.
6. Dillo displays frames as links that the user can click on.
7. ^ Not in standard install, but provided by extension. Archived 14 July 2008 at the Wayback Machine Archived 13 May 2008 at the Wayback Machine
8. Microsoft claims Internet Explorer 8 has full CSS2.1 support, however independent testing revealed several bugs.
9. ^ Depends on the layout engine which is chosen: Trident or Gecko or WebKit.
10. ^ Depends on the layout engine which is chosen: Trident or Gecko.

Plugins and syndicated content support

Information about what web standards, and technologies the browsers support. External links lead to information about support in future versions of the browsers or extensions that provide such functionality.

1. ^ Internet Explorer (and Shells) is the only browser to natively support the Component Object Model (popularly known as ActiveX). Most other browsers use the NPAPI plugin architecture. ActiveX is more powerful than NPAPI in terms of the control it affords over the browser, but it is specific to Windows whereas NPAPI is cross-platform. There is a third-party plugin that adds partial ActiveX support, that is available for certain older versions of Mozilla Suite, Mozilla Firefox and Netscape Navigator. The default settings in earlier versions of Internet Explorer allowed the automatic download, installation, and running of new ActiveX controls with minimal user intervention – this made it possible to use ActiveX on web pages to install viruses, spyware, etc. onto a user's computer.
2. ^ Java support is for built-in support by the browser without a plugin.
3. ^ Internet Explorer 7 and later.
4. ^ NPAPI and the Java-plugin were disabled by default in Chrome versions 42 and not supported in Chrome versions 45 and higher.
5. ^ RSS and ATOM feed autodetection in Epiphany depends on the Newsfeed extension which is included with Epiphany-extensions.
6. Internet Explorer did for a time support NPAPI plugins. Plugins that functioned in the Netscape browser also functioned in Internet Explorer. This was due to a small ActiveX control implemented within a "plugin.ocx" file that acted as a shim between the ActiveX based browser and the NPAPI plugin. The IE browser would load the control and use it to host plugins specified within the page. However, Microsoft made the claim that the NPAPI plugins (or the IE implementation of the API) were a security issue and dropped support for them in version 5.5 SP2.
7. Internet Explorer 8 supports syndicated content in hAtom / hSlice microformat by the name of a feature known as Web Slices. Internet Explorer 4.0—7 supported CDF.
8. ^ RSS and ATOM feed autodetection in Konqueror depends on the aKregator package which is installed with kdepim.
9. Safari had Java only on macOS, up to Safari 11. No longer supported Safari for Windows needed a plugin.
10. Safari has Gears only on Mac OS X 10.4+. Windows is not supported.

JavaScript support

Information about what JavaScript technologies the browsers support. Note that although XPath is used by XSLT, it is only considered here if it can be accessed using JavaScript. External links lead to information about support in future versions of the browsers or extensions that provide such functionality, e.g., Babel.

1. ^ It is possible to compile Amaya with JavaScript enabled, using the CVS version and SpiderMonkey. However, this is still experimental and only a small subset of DOM 1 is available.
2. ^ XPath is a part of DOM 3, but is considered separately here. A large subset of DOM 3 is accessible by extensions but not by websites.
3. Determined by GNU LibreJS.
4. ^ Internet Explorer 5 and above has its own event registration model and its own style sheets model, but these are incompatible with DOM 2.
5. Support for JavaScript has been removed in version 2.1pre29 (change log)
6. ^ SVG / XPath / (partial) DOM 3 is only available in the WebKit nightlies so far.
7. ^ Depends on the layout engine which is chosen: Trident or Gecko.

See what parts of DOM your browser supports

Protocol support

Information about what Internet protocols the browsers support (in addition to HTTP that all (modern) browser should and do fully support). External links lead to information about support in future versions of the browsers or extensions that provide such functionality.

More than half of web traffic from Chrome to Google's servers is handled by QUIC protocol, not TCP (or HTTP/1). Chrome, Opera, and Firefox have support for QUIC, and HTTP/3, while Safari is testing it for a subset of users.

1. Mosaic reached only HTTP 0.9 compliance, and does not support secure communications in any way.
2. ^ Many browsers have FTP support as read-only and have no upload capitilies. Read-only is marked as yes. For a comparison of clients that support upload opportunities see Comparison of FTP client software.
3. ^ Many browsers have purposely avoided support for e-mail and newsgroups (Usenet), as these are reserved for their mail-client counterparts. For a comparison of such counterparts see comparison of email clients and Comparison of Usenet newsreaders.
4. ^ Support for 256-bit ciphers (AES for example) for SSL/TLS is only available in Windows Vista and above
5. ^ Internet Explorer 7 has no support of gopher; gopher support is disabled in IE6.
6. ^ NNTP support can be added by installing the add-on infoRSS.
7. ^ IRC support can be added by installing ChatZilla.
8. ^ For security reasons, IDN domains are displayed as punycode if they contain certain characters or if the top-level domain has not been whitelisted .
9. ^ Possible using third party extensions like FoxTorrent
10. Dillo has experimental SSL integration that is by standard turned off. "How do I enable the https (SSL) support plugin for dillo?". Archived from the original on 9 May 2008. Retrieved 12 April 2017. There is no certificate caching and no authentication performed.
11. ^ Respects system-wide proxy settings.
12. Firefox support for the Gopher protocol was dropped in Firefox 4 (Gecko 1.9.3) per bug 388195. This and newer versions have full Gopher support when the OverbiteFF extension is installed.
13. Microsoft has limited support to certain "non-navigable" content, such as in <img> tags and CSS rules, for security reasons, including concerns that JavaScript embedded in a data URI may not be interpretable by script filters such as those used by web-based email clients.
14. Konqueror has full Gopher support when the kgopher KIO plugin is installed.
15. ^ Depends on the layout engine which is chosen: Trident or Gecko.
16. Includes a proxy capability for gopher support.
17. ^ Behavior towards malicious certificates can only be set up in compile time.

Image format support

Information about what image formats the browsers support. External links lead to information about support in future versions of the browsers or extensions that provide such functionality.

1. ^ Although it was one of the first suggested WWW image formats, most browsers support TIFF by using a plugin installed by the user instead of decoding it natively.
2. ^ SVG here refers to SVG 1.1 Full. There are also two simplified profiles known as SVG 1.1 Tiny and SVG 1.1 Basic, which are intended for user agents with limited capabilities.
3. ^ Most browsers support PDF by installing an Adobe plugin which takes over the browser window. Listed here are browsers which also support inline PDFs within other hypertext documents (such as within HTML's <img/> tag). Note that PDF (in strictly speaking) is not an image format, but a scriptable rich text document format that can contain different types of multimedia content, including vector and bitmap graphics, audio, video, forms, intra- and inter-document hypertext links and a hierarchical contents listing. The format is also the native display format under macOS.
4. ^ Internet Explorer supports PNG images but is unable to correctly display images with gamma correction or color correction. Versions of Internet Explorer prior to version 7 are unable to correctly display images with alpha channel (for transparency) without additional coding .
5. ^ Support for the canvas element was added to Internet Explorer 9. Earlier versions of Internet Explorer can be made to emulate canvas using the excanvas script.
6. ^ Internet Explorer support for XBM files was removed in Version 6.
7. ^ Firefox and SeaMonkey partially support SVG 1.1 Full. Modules that are implemented or not implemented and details of their implementation: .
8. ^ For Chromium prior to version 59 there is support via an extension.
9. Falkon supports as much SVG specification as WebKit does: .
10. ^ Mozilla applications rebranded by the GNU project, such as GNU IceCat or Iceape do not support APNG.
11. In Gecko 1.9.2 (Firefox 3.6) XBM support was dropped.
12. Konqueror supports JPEG2000 if KDE's viewer is compiled with Jasper library.
13. Inline PDF viewing in Konqueror requires KPDF which is included in kdegraphics.
14. ^ While lacking support for inline display of graphical elements, Lynx allows defining standalone image viewer and assigning programs to MIME types. Such program is called when user activates corresponding element, effectively allowing Lynx user to add support for arbitrary non-inlined file format.
15. ^ Safari 3 is able to render SVG documents, but not fully.
16. Depends on the layout engine which is chosen: Trident or Gecko.
17. 32-bit version only.
18. Opera is currently supporting APNG on their Beta and Dev builds.
19. Opera supports SVG 1.1 Basic. Archived 4 June 2012 at archive.today
20. Pale Moon supports JPEG-XR from the first quarter of 2017.
21. Safari support for HEIF pronounced in 2017 from version 11 on operating systems macOS Sierra and iOS 11.
22. With the addition of the new Cairo version in Gecko 1.9 it will be natively possible to save pages to PDFs but not read them. This feature is not included in Firefox 3.5, however it is possible with the new Cairo backend.

Internationalization

Most browsers are available in more than one language.

See also

• History of the web browser
• List of web browsers
• Comparison of browser engines
• Comparison of lightweight web browsers
• Version history for TLS/SSL support in web browsers
• Usage share of web browsers
• Comparison of download managers
• Browser security
• Browser wars
• HTML video browser support
• HTML audio supported audio coding formats

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