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List of free and recommended Mozilla WebExtensions
open-in-new
<h2 id="mozilla-software">Mozilla software</h2> <h3>Firefox</h3> <table><tbody><tr><th rowspan="2"><a href="/facts/Browser_extension/jzkeh57V">Browser extension</a></th><th rowspan="2">Free license</th><th colspan="2">Dependencies</th><th rowspan="2">WebExt</th><th rowspan="2">Rec.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a></th><th rowspan="2">Category</th><th rowspan="2">Description</th></tr><tr><th>Nonfree JS site</th><th>Nonfree server</th></tr><tr><td>Cookie AutoDelete</td><td><a href="/facts/MIT/Xk49vNA8">MIT</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Privacy and security</td><td></td></tr><tr><td><a href="/facts/Decentraleyes/KKczzccF">Decentraleyes</a></td><td><a href="/facts/MPL-2.0/hBuvAz1w">MPL-2.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Content delivery network (CDN) emulation</td><td></td></tr><tr><td><a href="/facts/DownThemAll!/mXWWMXp5">DownThemAll!</a></td><td><a href="/facts/GPL-2.0/S75KhLSX">GPL-2.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Download manager</td><td>A download manager and accelerator.</td></tr><tr><td>FoxyProxy Standard</td><td><a href="/facts/GPL-2.0/S75KhLSX">GPL-2.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Privacy and security</td><td>Proxy management tool</td></tr><tr><td><a href="/facts/HTTPS_Everywhere/VB3NyCuq">HTTPS Everywhere</a></td><td><a href="/facts/GPL-2.0-or-later/S75KhLSX">GPL-2.0-or-later</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Transport Layer Security (TLS)</td><td>HTTP Secure whenever possible.</td></tr><tr><td><a href="/facts/NoScript/HYwsIrsL">NoScript</a></td><td><a href="/facts/GPL-2.0/S75KhLSX">GPL-2.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Privacy and security</td><td>JavaScript and other potentially executable content.</td></tr><tr><td><a href="/facts/Privacy_Badger/TXSRovUD">Privacy Badger</a></td><td><a href="/facts/GPL-3.0/S75KhLSX">GPL-3.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Adblocker</td><td>Do Not Track setting in a user's web browser.</td></tr><tr><td>Read Aloud</td><td><a href="/facts/GPL-3.0/S75KhLSX">GPL-3.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Accessibility</td><td>A Text to Speech Voice Reader</td></tr><tr><td><a href="/facts/Stylus_(browser_extension)/purbPTqG">Stylus</a></td><td><a href="/facts/GPL-3.0/S75KhLSX">GPL-3.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>CSS</td><td>Customization</td></tr><tr><td>Turn Off the Lights</td><td><a href="/facts/GPL-2.0/S75KhLSX">GPL-2.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Customization</td><td>Obscure or mask content other than a running video.</td></tr><tr><td><a href="/facts/UBlock_Origin/5LIERRTn">uBlock Origin</a></td><td><a href="/facts/GPL-3.0/S75KhLSX">GPL-3.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Wide-spectrum content blocker</td><td>Blocking ads and filtering content via a paired blacklist and whitelist.</td></tr><tr><td>Zoom Page WE</td><td><a href="/facts/GPL-2.0/S75KhLSX">GPL-2.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Accessibility</td><td>computer vision syndrome (CVS)</td></tr></tbody></table> <h4>Firefox compatibility</h4> <table><tbody><tr><th><a href="/facts/Browser_extension/jzkeh57V">Browser extension</a></th><th>Firefox</th><th>Firefox for Android</th></tr><tr><td>Cookie AutoDelete</td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/Decentraleyes/KKczzccF">Decentraleyes</a></td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/DownThemAll!/mXWWMXp5">DownThemAll!</a></td><td>Yes</td><td>No</td></tr><tr><td>FoxyProxy Standard</td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/HTTPS_Everywhere/VB3NyCuq">HTTPS Everywhere</a></td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/NoScript/HYwsIrsL">NoScript</a></td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/Privacy_Badger/TXSRovUD">Privacy Badger</a></td><td>Yes</td><td>Yes</td></tr><tr><td>Read Aloud</td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/Stylus_(browser_extension)/purbPTqG">Stylus</a></td><td>Yes</td><td>No</td></tr><tr><td>Turn Off the Lights</td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/UBlock_Origin/5LIERRTn">uBlock Origin</a></td><td>Yes</td><td>Yes</td></tr><tr><td>Zoom Page WE</td><td>Yes</td><td>No</td></tr></tbody></table> <h3>Thunderbird</h3> <table><tbody><tr><th rowspan="2"><a href="/facts/Browser_extension/jzkeh57V">Browser extension</a></th><th rowspan="2">Free license</th><th colspan="2">Dependencies</th><th rowspan="2">WebExt</th><th rowspan="2">Rec.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a></th><th rowspan="2">Category</th><th rowspan="2">Description</th></tr><tr><th>Nonfree JS site</th><th>Nonfree server</th></tr><tr><td><a href="/facts/Enigmail/VcY5wdqC">Enigmail</a></td><td><a href="/facts/MPL-2.0/hBuvAz1w">MPL-2.0</a></td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td></td><td></td></tr></tbody></table> <h2 id="notes">Notes</h2> <h2 id="external-links">External links</h2> <ul><li><a href="https://addons.mozilla.org">Official add-ons site for Mozilla products</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>WebExtensions are designed for web browsers based on Mozilla Firefox 57 or later. Legacy add-ons are not listed on addon.mozilla.org.[1] Many Firefox extensions work in the SeaMonkey web browser as well as the Pale Moon web browser and the Thunderbird e-mail client. <a href="/wiki/Add-on_(Mozilla)" target="_blank">/wiki/Add-on_(Mozilla)</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Recommended Extensions program | Firefox Help". support.mozilla.org. <a href="https://support.mozilla.org/en-US/kb/recommended-extensions-program" target="_blank">https://support.mozilla.org/en-US/kb/recommended-extensions-program</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Recommended Extensions program | Firefox Help". support.mozilla.org. <a href="https://support.mozilla.org/en-US/kb/recommended-extensions-program" target="_blank">https://support.mozilla.org/en-US/kb/recommended-extensions-program</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Recommended Extensions program | Firefox Help". support.mozilla.org. <a href="https://support.mozilla.org/en-US/kb/recommended-extensions-program" target="_blank">https://support.mozilla.org/en-US/kb/recommended-extensions-program</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>