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User-Agent Switcher (revived) Compatible with Firefox 57+

Quickly and easily switch between popular user-agent strings.

Rated 4 out of 5 stars (11)
5,828 users

Startfenster

Das Startfenster fürs Internet

Rated 4 out of 5 stars (11)
5,327 users

View Source Mobile

Adds 'View Source' menu.

Rated 4 out of 5 stars (35)
5,063 users

JSONovich

Pretty-prints JSON content in the browser for easy, unobtrusive viewing.

Rated 4 out of 5 stars (43)
4,928 users

Home Button for firefox on android

Adds Home Button for Firefox on android.

Rated 4 out of 5 stars (62)
4,715 users

Blocker for Wix ads Compatible with Firefox 57+

Block Wix ads!

Rated 5 out of 5 stars (7)
4,700 users

No need flash plugin on embeded youtube movies

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (21)
4,602 users

Desktop by Default

Enables desktop mode by default.

Rated 4 out of 5 stars (41)
4,586 users

Pocket Hits Featured

Adds a Pocket Hits panel to your Firefox for Android home page.

Rated 4 out of 5 stars (75)
3,880 users

Textmarker

Highlighter with different colors, saving options, customizable highlight styles and undo/redo functionality.
Select some text, press M - done.
Changes can be stored in Textmarker history for later visits.

Does not work on tablet (yet).

Rated 5 out of 5 stars (32)
3,659 users

Checker Plus for Gmail™ Compatible with Firefox 57+

Get desktop notifications, read, listen or delete emails without opening Gmail or Inbox by Gmail & easily manage multiple accounts.

Rated 4 out of 5 stars (53)
3,640 users

Smarter Scrolling Featured

Flick your finger quickly up or down to scroll right to the top or bottom of the page

Rated 5 out of 5 stars (51)
3,338 users

PDF editor online Compatible with Firefox 57+

Create and edit PDF files with PDF editor online

Rated 4 out of 5 stars (27)
3,326 users

Always Zoom

Allow zooming even on pages that disable it.

Rated 4 out of 5 stars (32)
3,315 users

Twitter Web - Night Mode Compatible with Firefox 57+

Android/iOS like night mode for twitter web app. Enable or disable it at the click of a button.

Rated 5 out of 5 stars (22)
3,122 users

Redux DevTools Compatible with Firefox 57+

DevTools for Redux with actions history, undo and replay.

Rated 5 out of 5 stars (5)
2,995 users

Page Translator Compatible with Firefox 57+

One-click in-line page translation for Firefox. Translates any page using Google Translate or Microsoft Translator. It's minimalist. The translate icon will only appear if the page is in a foreign language.

Rated 5 out of 5 stars (35)
2,982 users

Video Speed Controller Compatible with Firefox 57+

Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.

Rated 4 out of 5 stars (19)
2,830 users

Youtube Dark Mode Compatible with Firefox 57+

Switch youtube to dark mode. Dark mode will help devices save battery and useful for your sleeping. This dark mode is supported by https://www.emojionline.org

Rated 5 out of 5 stars (92)
2,761 users