View source for List of free and recommended Mozilla WebExtensions

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{{Firefox TOC}}
{{Outdated as of | topic = Firefox | last updated = January 2024  | year = 2025 | month = 03 | day = 6 }}
This is a list of WebExtensions{{efn|[[Add-on (Mozilla)|WebExtensions]] are designed for [[web browser]]s based on [[Firefox|Mozilla Firefox]] 57 or later. Legacy add-ons are not listed on addon.mozilla.org.<ref>{{cite web |title=Add-ons for Firefox (en-US) |url=https://addons.mozilla.org/en-US/firefox/ |website=addons.mozilla.org}}</ref> Many Firefox extensions work in the [[SeaMonkey]] web browser as well as the [[Pale Moon (web browser)|Pale Moon]] web browser and the [[Mozilla Thunderbird|Thunderbird]] e-mail client.}} that are recommended by [[Mozilla]].<ref name=rec>{{cite web |title=Recommended Extensions program {{!}} Firefox Help |url=https://support.mozilla.org/en-US/kb/recommended-extensions-program |website=support.mozilla.org}}</ref>

==Mozilla software==

===Firefox===

{| class="wikitable sortable" style="width: auto; text-align: center;"
! rowspan="2" | [[Browser extension]]
! rowspan="2" | Free license
! colspan="2" | Dependencies
! rowspan="2" | WebExt
! rowspan="2" | Rec.<ref name=rec/>
! rowspan="2" | Category
! rowspan="2" | Description
|-
! Nonfree JS site
! Nonfree server
|-
| [[Cookie AutoDelete]]
| {{yes|[[MIT]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Privacy and security
| 
|-
| [[Decentraleyes]]
| {{yes|[[MPL-2.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Content delivery network (CDN) emulation
| 
|-
| [[DownThemAll!]]
| {{yes|[[GPL-2.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Download manager
| A download manager and accelerator.
|-
| [[FoxyProxy Standard]]
| {{yes|[[GPL-2.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Privacy and security
| Proxy management tool
|-
| [[HTTPS Everywhere]]
| {{yes|[[GPL-2.0-or-later]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Transport Layer Security (TLS)
| HTTP Secure whenever possible.
|-
| [[NoScript]]
| {{yes|[[GPL-2.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Privacy and security
| JavaScript and other potentially executable content.
|-
| [[Privacy Badger]]
| {{yes|[[GPL-3.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Adblocker
| Do Not Track setting in a user's web browser.
|-
| [[Read Aloud]]
| {{yes|[[GPL-3.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Accessibility
| A Text to Speech Voice Reader
|-
| [[Stylus (browser extension)|Stylus]]
| {{yes|[[GPL-3.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| CSS
| Customization
|-
| Turn Off the Lights
| {{yes|[[GPL-2.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Customization
| Obscure or mask content other than a running video.
|-
| [[uBlock Origin]]
| {{yes|[[GPL-3.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Wide-spectrum content blocker
| Blocking ads and filtering content via a paired blacklist and whitelist.
|-
| [[Zoom Page WE]]
| {{yes|[[GPL-2.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| Accessibility
| computer vision syndrome (CVS)
|-
|}

====Firefox compatibility====
{| class="wikitable sortable" style="width: auto; text-align: center;"
! [[Browser extension]]
! Firefox
! Firefox for Android
|-
| [[Cookie AutoDelete]]
| {{yes}}
| {{yes}}
|-
| [[Decentraleyes]]
| {{yes}}
| {{yes}}
|-
| [[DownThemAll!]]
| {{yes}}
| {{no}}
|-
| [[FoxyProxy Standard]]
| {{yes}}
| {{yes}}
|-
| [[HTTPS Everywhere]]
| {{yes}}
| {{yes}}
|-
| [[NoScript]]
| {{yes}}
| {{yes}}
|-
| [[Privacy Badger]]
| {{yes}}
| {{yes}}
|-
| [[Read Aloud]]
| {{yes}}
| {{yes}}
|-
| [[Stylus_(browser_extension)|Stylus]]
| {{yes}}
| {{no}}
|-
| Turn Off the Lights
| {{yes}}
| {{yes}}
|-
| [[uBlock Origin]]
| {{yes}}
| {{yes}}
|-
| [[Zoom Page WE]]
| {{yes}}
| {{no}}
|-
|}

===Thunderbird===

{| class="wikitable sortable" style="width: auto; text-align: center;"
! rowspan="2" | [[Browser extension]]
! rowspan="2" | Free license
! colspan="2" | Dependencies
! rowspan="2" | WebExt
! rowspan="2" | Rec.<ref name=rec/>
! rowspan="2" | Category
! rowspan="2" | Description
|-
! Nonfree JS site
! Nonfree server
|-
| [[Enigmail]]
| {{yes|[[MPL-2.0]]}}
| {{yes|No}}
| {{yes|No}}
| {{yes}}
| {{yes}}
| 
| 
|}

==Notes==
{{notelist}}

==References==
{{Reflist}}

==External links==
* [https://addons.mozilla.org Official add-ons site for Mozilla products]

{{Mozilla}}

{{DEFAULTSORT:List Of Firefox Extensions}}
[[Category:Free Firefox WebExtensions|*]]
[[Category:Lists of software add-ons|Mozilla]]