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Stylus (Beta) Compatible with Firefox 57+

Redesign the web with Stylus, a user styles manager. Stylus allows you to
easily install themes and skins for many popular sites.

Rated 4 out of 5 stars (12)
1,085 users

Temp Mail - Disposable Temporary Email Compatible with Firefox 57+

Temporary disposable email address. Protect your email from spam, bots and phishing with Temp-Mail.

Rated 4 out of 5 stars (6)
1,166 users

AdBusters - AdBlocker + Ad-O-Meter Compatible with Firefox 57+

- 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 (11)
1,909 users

disablemenu Requires Restart

This extension allows you to show/hide the main menu. It can be accessed through a toolbarbutton, keyboard shortcut and popup-menu-item. It also supports autohide. the statusbar can optionally be hidden.

Rated 5 out of 5 stars (58)
1,438 users

Zoom Page Requires Restart

Full featured zoom manager with independent page and image zoom modes. Choose from four zoom modes: Default Zoom, Fit-To-Width, Default Zoom + Site Specific or Fit-To-Width + Site Specific. Button style and zoom levels are fully configurable.

Rated 5 out of 5 stars (158)
89,902 users

Dark Mode (WebExtension) Compatible with Firefox 57+

A global dark theme for the web

Rated 4 out of 5 stars (28)
6,167 users

Print for Firefox Compatible with Firefox 57+

Print the current page you see.

Rated 4 out of 5 stars (6)
1,145 users

Dark Theme for Google™ Compatible with Firefox 57+

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

Rated 5 out of 5 stars (10)
1,855 users

Picture Blocker

Block/Allow images by pressing user-defined hotkeys or a toggle button.

Rated 4 out of 5 stars (15)
2,955 users

Text Contrast for Dark Themes Compatible with Firefox 57+

Fixes low-contrast text when using a dark desktop theme.

Rated 5 out of 5 stars (21)
1,598 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 (89)
2,248 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 (15)
2,100 users

Full Screen for Firefox Compatible with Firefox 57+

Go full screen with one click on the button.

Rated 5 out of 5 stars (63)
2,043 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 (21)
2,813 users

Dark TwitchTV Compatible with Firefox 57+

A Dark Theme for TwitchTV

Rated 5 out of 5 stars (5)
1,834 users

Duplicate Tab (in Private mode as well)

How many times you have felt a need to open same webpage in new tab so that you can view two things of it simultaneously.
Copying and pasting the URL is very tedious here comes a plugin to your rescue. Just right click and tadda tab duplicated..

Rated 4 out of 5 stars (11)
1,224 users

No YouTube comments

Hides annoying YouTube comments.

Rated 4 out of 5 stars (57)
3,289 users

Noise Requires Restart

Make sound responses while events happen.

Rated 4 out of 5 stars (41)
2,539 users

Autoplay No More

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

Rated 4 out of 5 stars (16)
2,078 users

AutoHiDPI

Set a different pixel ratio (layout.css.devPixelsPerPx) for each of your screens. Useful for mixed-DPI multi-monitor setups. For example, you can use it if you have one HiDPI (Retina) screen and one lower-DPI HD screen.

Rated 4 out of 5 stars (22)
1,195 users