LeechBlock NG
SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
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Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
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Foxy Gestures
Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.
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uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
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AdBlock for Firefox
The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.
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AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
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SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
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YouTube NonStop
Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music!
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To Google Translate
Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language.
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TWP - Translate Web Pages
Translate your page in real time using Google or Yandex. It is not necessary to open new tabs. Now works with the NoScript Extension.
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Simple Translate
Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.
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ImTranslator: Translator, Dictionary, TTS
COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX ImTranslator translates text, words, webpages between more than 100 languages. NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.
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Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
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Zoom Page WE
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.
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Zoom Extension
Recommended, support FireFox 45+. The Zoom Firefox Extension allows participants to schedule Zoom cloud meetings directly from Google Calendar. you can start an instant meeting or schedule a future meeting via a button.
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Zoom Image
As though the mouse wheel rotate by the right click on the images, you can do the images extenting / reducing / rotating and so on. It can be expanded regardless of design. Also you can drag zoomed images.
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