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Hide Tabbar Requires Restart

Hide the tabbar by just pressing a key.

Rated 4 out of 5 stars (83)
15,440 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 (70)
1,499 users

Small Nav Bar Requires Restart

Small Nav Bar will resize the navigation bar, so you can gain a little extra space. Mini nav bar. Compact back/forward button.

Rated 4 out of 5 stars (3)
1,058 users

Search Helper - Enhance Google Requires Restart

Open Google search results in multiple tabs. Access your last search results from a toolbar button. Get similar sites for any Google search result.

Rated 5 out of 5 stars (6)
18,953 users

kiosk-costaisa Requires Restart

RKiosk (Real Kiosk), fullscreen kiosk mode: all menus, keys etc. disabled
Costaisa variant.

Rated 3 out of 5 stars (9)
2,905 users

Dark Theme for Google™ Compatible with Firefox 57+

A highly customizable dark theme for Google products (search, images, translate, and contacts)

Rated 4 out of 5 stars (5)
1,238 users

UI Eraser

Hide Firefox User Interface.

Rated 5 out of 5 stars (16)
5,537 users

Browsizer Requires Restart

Move and Resize Browser Window.

Rated 5 out of 5 stars (10)
4,605 users

Image Video Block Compatible with Firefox 57+

Blocks Images and Hides VIDEO, FLASH, SVG and CANVAS elements. Does NOT download images.

Rated 4 out of 5 stars (10)
2,931 users

Disable Hello, Pocket & Reader+

Turn off Pocket, Reader, Hello and WebRTC bloatware - keep browser fast and clean

Rated 5 out of 5 stars (31)
11,191 users

Dark Mode (WebExtension) Compatible with Firefox 57+

A global dark theme for the web

Rated 5 out of 5 stars (23)
4,479 users

Full Screen for Firefox Compatible with Firefox 57+

Go full screen with one click on the button.

Rated 5 out of 5 stars (25)
1,460 users

Image-Show-Hide Requires Restart

simply turn on|off images on all web-pages and (optional) autoreload current...

Rated 4 out of 5 stars (32)
11,463 users

Hide Sync in Menu

Hide "Sign in to Sync" button in the menu.

Rated 5 out of 5 stars (4)
1,161 users

Autoplay No More

Disable "play next video" feature on Youtube, TED and Vimeo.

Rated 4 out of 5 stars (15)
2,752 users

Literal - PDF Reader Compatible with Firefox 57+

Literal replaces Firefox's default PDF reader with a cloud connected and unobtrusive user interface. Keep track of your reading activity, history, and progress automatically, integrate with cloud storage, and upgrade your e-reading experience.

Rated 4 out of 5 stars (1)
1,483 users

Ultrawidify Compatible with Firefox 57+

Aspect ratio fixer for Youtube. Allows improperly encoded videos to properly fit wider displays (e.g. 21:9)

Rated 5 out of 5 stars (14)
1,815 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 (17)
2,396 users

Dark TwitchTV Compatible with Firefox 57+

A Dark Theme for TwitchTV

Rated 5 out of 5 stars (4)
1,851 users

AdBusters - AdBlocker + Ad-O-Meter

- Really ad-free, no deals with advertisers
- Ad-O-Meter shows you how ad-heavy a page is before you open it
- Includes preconfigured anti-adblock-killers and stealth mode
- Easily installed in three clicks no need to sign-up or register

Rated 4 out of 5 stars (3)
1,412 users