YouTube Search Engine
Adds YouTube search engine to search engines.
10,444 users
HackBar
A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. Press F12 to use HackBar
10,149 users
Pinned Google Calendar
Go to the pinned Google Calendar tab. If it doesn't exist, it's created.
9,938 users
Always on Top
Sets "Always on Top" style for your Firefox window
9,937 users
Simple mass downloader
A simple but powerful mass downloader. Download links from multiple tabs at once, from the clipboard or selected text on web pages. Advanced filtering or multi-renaming options. User-defined automatic download folders.
9,814 users
Html Validator
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon For Firefox 56, use 0.974 (see all versions below). For Firefox 57, see Web Extensions.
9,673 users
Linguist - web pages translator
Translate web pages, highlighted text, Netflix subtitles, private messages, speak text, and save important translations to your personal dictionary to learn words in 130 languages.
9,402 users
Google Page Translate
Adds a toolbar button to open Google Page Translate for the current tab.
9,311 users
Progressive Web Apps for Firefox
A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox
9,241 users
Highlighter + Notes
Add Highlights and Notes to a Web Page
9,145 users
Session Sync
Save sessions as bookmarks and access them across devices. Advanced Session Manager: edit, save, change, restore. It can also be your best Bookmark Manager
8,962 users
daily.dev | The homepage developers deserve
Get one personalized feed for all the knowledge you need as a developer.
8,842 users
Tab Counter
Add a badge to the toolbar that shows the number of currently open tabs in a window or all windows.
8,837 users
Ignore X-Frame-Options Header
Allows all sites to be loaded in iframes, despite X-Frame-Options header settings.
8,825 users
Markdown Viewer Webext
Displays markdown documents beautified in your browser.
8,790 users
axe DevTools® - Web Accessibility Testing
Add accessibility auditing to the Firefox Developer Tools
8,714 users
Multithreaded Download Manager
Download manager with multithreading support.
8,707 users
ReloadMatic: Automatic Tab Refresh
ReloadMatic automates the periodic reloading / refreshing of browser tabs. It offers cache control, custom intervals, POST support and many other features. It also integrates with browser features such as tab restore, pinning, and incognito mode.
8,595 users
Bulk Image Downloader
Integrates Bulk Image Downloader (a Windows only app that must be installed separately) with FireFox. Download full sized images from almost any thumbnailed web gallery. Supports most popular image hosts such as imagevenue, imagefap, flickr, etc.
8,557 users
Torrent Control
Send torrent and magnet links to your Bittorrent client's web interface. Supports BiglyBT, Cloud Torrent, Deluge, Flood, ruTorrent, Tixati, Transmission, tTorrent, µTorrent, Vuze and qBittorrent.
8,458 users
Channel Blocker
Are you annoyed by YouTube™s video recommendations? Our Add-on enables the function of blocking anything you'd like. Block separate videos, users or whole channels with only one click!
8,399 users
مترجم ، اولین افزونه ترجمه خودکار
مترجم ، اولین افزونه ترجمه خودکار صفحه خود را در زمان واقعی با استفاده از Google یا Yandex ترجمه کنید. Regards , Mohamad Samardeh Haghighi Fard :)
8,307 users
Remove Youtube Shorts
Remove Youtube Shorts tab in navigation tab, and redirect Youtube Shorts Videos to original Youtube video player, for better experience on desktop.
8,276 users
MySessions
A simple session manager. You can quickly save your current browser state and reload it whenever necessary. This is not a replacement for Michael Kraft's "Session Manager", but it allows you to import saved sessions from the "Session Manager".
8,243 users
DanfeOnline - Gerador de DANFE
Extensão para auxiliar consultas de DANFE, DACTE e CC-E.
8,172 users