Resize Window & Viewport
Resize browser window or viewport to desired screen widths. Firefox's Responsive Design Mode (Ctrl + Shift + M) is great for mobile devices emulation.
970 users
Notion Boost
Boost Notion productivity with features like outline,small text & full width by default,hide comments & help button,bolder text etc
965 users
Slither.io Mods, Zoom, Unlock Skins, Bots
The Best Mod and Extension for Slither.io! Mod Zoom, Play with Friends, Skins, Custom Skins, Bots
956 users
Format Link
Format a link and copy it to the clipboard in your favorite format. You can use keyboard shortcuts, the toolbar button, or context menus to copy a link. You can escape meta characters, for example ] (closing square bracket) in markdown title.
952 users
tumblr video downloader and enhancer
+ download to video player; + volume slider; preview supported; Disclaimer: This is not an official Tumblr app.
948 users
Save to Trello
This firefox extension allows you to Create a Trello card from any webpage (including Gmail/webmail) / Ideal for Inbox Zero. You can save the current page to Trello. When you find something in Firefox that you want to view later put it in Trello.
946 users
CustomCSS Injector
- Apply any CSS rules for any websites, including iframes. - Whitelist and Blacklist functionality - Apply CSS rules to specific URLs, Domains or Globally - Syntax highlighting & line numbers - Update without page refresh
940 users
Sticky Notes
Simple sticky notes utility which provides facility to make small notes of any thing.
936 users
Simplify Gmail
Your time and attention matter -- Simplify Gmail enhances Gmail to boost productivity, strengthen privacy, and reduce stress. From the co-founder of Google Inbox.
936 users
Edit Anything
Edit Anything from Chrome is now on Firefox. Before It was on Chrome. Click icon to turn on. sets contentEditable to true. Click to set false. If on then click text/any other element and make the changes. Changes don't persist after reload.
934 users
stutter
A Rapid Serial Visual Presentation (RSVP) extension for modern web browsers that allows for full page and selected text speed-reading of web content.
925 users
DarkCloud
SoundCloud Dark Theme With this extension, you'll get a darker themed SoundCloud for those who prefer it, either because it looks cooler or it goes easier on your eyes!
922 users
Study Tools voor Magister
Study Tools brengt veel verbeteringen aan op Magister, Nederlands grootste elektronische leeromgeving. Kies aangepaste thema's, omzeil vervelende user interfaces en bereken gemakkelijk je cijfers.
916 users
View Page Source (Mobile)
Adds the ability to open the page source in a new tab via button (Desktop) or menu (Firefox for Android).
916 users
YTMp3 YouTube To MP3 Converter YTMp4 Downloader
Simple YouTube MP3 Button Just 1-Click YouTube Video Downloader Easy YouTube Mp4 Video Downloader Express YTMP3 Converter YTMP4
913 users
Search Site WE
Search within the current subdomain or within the entire domain, using the toolbar button or context menu.
910 users
Open in Microsoft Edge
Opens current tab in Microsoft Edge (by simply adding 'microsoft-edge:' to the URL, no additional native software needed).
909 users
RotateView
Rotate the entire page or rotate fullscreen view to best fit the device aspect ratio
905 users
