StartupApps
Open a list of URL at startup in new pinned tabs. (Pinned home pages)
530 users
Close Tab Button Quantum
Toolbar button to close the current tab. Works on the newest version of Firefox. This is a replacement for browser.tabs.closeButtons feature set to '3' of old firefox.
526 users
Disable Tab Detach 2
Disable tab tearing. Prevents unintentionally detaching a tab from the window. When the tab is detached from the window, return it to the original position.
524 users
Bulk URL Opener
Opens multiple URLs in one click
523 users
omnibar
Attempt to make most shortcut accessible from the toolbar. See https://github.com/Wardormeur/omnibourre/README.md for supported commands
521 users
Close Other Tabs Button
Close all the currently open tabs except the selected one.
519 users
Pinned Dropbox
Open Dropbox in New Pinned Tab
517 users
TabScroller
Scroll through tabs with the mouse wheel, while holding down the right button (and/or keyboard modifiers). Please read the limitations below...
517 users
Rename Tab
Allows you to rename tabs by right-clicking the tab and selecting "Rename Tab"
515 users
FireTitle
A webextension version of FireTitle, this version lacks some features of the original since WebExtension API doesn't permit to freely change a window's title.
514 users
M3U8 Link Finder
Detect .m3u8 Links on any website to download them
512 users
Permanent Progress Bar for YouTube
Display tiny progress bar on YouTbue player even in the fullscreen mode
511 users
Sea Containers
Containers sidebar for managing tabs.
509 users
Android new tabs in foreground
Opens new tabs in foreground.
506 users
Best Homepage Ever - Home and New Tab Launcher
Automatically sets Best Homepage Ever as Firefox's default homepage, giving you instant access to all of your favorite sites on one beautiful, personalized page. Optionally, you can opt to override the default new tab page as well. Try it today!
503 users
Copy HTML Text WE
Copy HTML source text. Keyboard shortcut F8.
498 users
Remove HTML Elements
Easily remove desired HTML5 elements with just one click!
498 users
Tab Split Merger
Split tabs into separate windows and easily merge them back together into one.
497 users
Simple Mouse Gestures
Mouse Gestures Super Drag Multi Link Opener Wheel Gestures Long Press on Links Rocker Gestures ****** When mouse gestures are enabled, a visual guide displays when you hold the right mouse button down and move the mouse.
496 users
Simple link preview
Preview links without leaving your current page.
496 users
Popup Tab
Convert a tab into a popup and vice versa
489 users
Dark Theme for Facebook™
A schedulable and customizable dark theme for facebook.com and messenger.com
489 users
URL Incrementer - A Next Page Incrementer
Increment a URL or go to the next page. Supports auto, multi, and advanced incrementing functions.
485 users
Easy Session Manager
Easy Session Manager allows you to manage your Firefox session (tabs) by backing up or loading them in your current profile.
485 users
GMail Opener
Opens mail.google.com after clicking on it. Does nothing else.
483 users