Rotate Youtube Video (+ Zoom / Mirror, AB Loop)
You can rotate, zoom, mirror, or A-B loop the video. See the full details at the bottom of this page, or press the shortcut Ctrl + Shift + 1 after installing the add-on to open the add-on preferences.
사용자 5,133명
Force Dark Mode
Toggle dark mode on and off on any website.
사용자 5,112명
Google™ Translator
a handy multi-language translator built on top of Google translate.
사용자 5,100명
FoxScroller
Auto scroll web pages with fully adjustable speed.
사용자 5,095명
Prolific Assistant
Monitors new studies on Prolific.
사용자 5,089명
Full Screen for Firefox
Go full screen with one click on the full screen button. That includes also the full screen movies such as YouTube, Vimeo, etc.
사용자 5,038명
DjVu.js Viewer
The extension is a local copy of the DjVu.js Viewer which is available on https://djvu.js.org/. It allows you to open links to .djvu files right in the browser and .djvu files from a local drive. Also, it processes tag with .djvu files.
사용자 4,873명
Theme Font & Size Changer
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
사용자 4,852명
Quick Dial
Quick Dial, a speed dial page inspired from fast dial. Full Open Source, No Web Service, No Cloud Account, your data is your own.
사용자 4,727명
View Page Source
View the source code of a page with the click of a button.
사용자 4,696명
YouTube Popout Player
Provides a simple way to open any YouTube video in a popout window
사용자 4,696명
YTBlock - Block any content from YouTube™
Block any unwanted content from YouTube™
사용자 4,681명
YouTube LiveChat Flusher (Danmaku Chat)
Revolutionize your YouTube viewing experience with Danmaku-style chat.
사용자 4,636명
Copy Selected Links
Right-click selected text to copy the URL of any links it contains.
사용자 4,596명
ePUB Reader
View ePUB files right in your browser in a popup window.
사용자 4,590명
Tridactyl
Vim, but in your browser. Replace Firefox's control mechanism with one modelled on Vim. This addon is very usable, but is in an early stage of development. We intend to implement the majority of Vimperator's features.
사용자 4,589명
Fixed Zoom
Extension that sets a custom default zoom for all pages in Firefox. You can set a general zoom for all pages or custom rules depending on the site.
사용자 4,573명
EuroSaver - Amazon Europe Price Comparison
Simplifies Amazon product price comparison between all european Amazon stores.
사용자 4,568명
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
사용자 4,518명
Better Darker Docs
Gives Google Docs, Sheets, Slides, and Drawings a proper dark mode based on system theme, plus clearer text
사용자 4,467명
Timer (alarm, timer and stopwatch)
Stylish timer combined with stopwatch and alarm for your browser.
사용자 4,459명
Яндекс Эволюция - Поиск Yandex Search
Российский поисковик Яндекс (Яndex, Yandex)
사용자 4,443명
RYS — Remove YouTube Suggestions
Stop the YouTube rabbit hole. Customize YouTube's user interface to be less engaging.
사용자 4,434명
마우스 제스처
마우스 움직임으로 브라우저를 관리하십시오.
사용자 4,432명
Pinterest - LIGHT & DARK THEME
Apply a different themes to Pinterest web version.
사용자 4,388명