one sec | Website Blocker, Focus, Screen Time
“one sec” forces you to take a deep breath and pause whenever you open one of the configured websites (Reddit, YouTube, Twitter, …).
1,447 users
Tab Sidebar
Adds a sidebar with foldable tabs.
1,444 users
English Popup Dictionary
An English Dictionary for Firefox Quantum which gives meaning of a word which is double-click selected on a webpage.
1,438 users
Download by Internet Download Manager
Optionally use Internet Download Manager instead of the built-in download manager to get large files
1,437 users
SwitchyOmega for VProxy
VProxy is an HTTPS proxy disguised an HTTPS web site. SwitchyOmega for VProxy allows you to connect to Internet via VProxy.
1,431 users
Download with FlashGet
when activated, interrupts the built-in download manager to direct links to FlashGet
1,430 users
auto resume downloads
This extension allows the user to auto resume downloads that have failed due to non-human error. Failed downloads will attempt to resume within one minute of failing. Does not resume downloads that have been cancelled by user or browser close.
1,418 users
Paperpile
Collect, organize, annotate and cite your research papers in Firefox.
1,418 users
Let's get color blind
Simulates information a color blind person receives and/or adds a daltonization filter. This addon can be used for testing a website accessibility for the color blind and / or to educate (yourself) on the topic of color blindness.
1,413 users
NoFollow
Outlines nofollow links, detect nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles
1,406 users
Twitter Image Downloader
Download and rename original image in twitter.com timeline. この拡張はtwitter.com上で動作します。 タイムライン上の画像を右クリックしたときのコンテキストメニューに「download original image」を追加します。 この操作を行うと、画像は投稿者のユーザー名とツイートIDで自動的にリネームされダウンロードされるため、ダウンロードした画像をひとつずつリネームするという煩雑な作業を減らすことができます。
1,396 users
Python Notebook Viewer
This plugin lets you view/render python notebooks without running notebook server. Once installed simply drag and drop .ipynb file into firefox and it will be rendered.
1,394 users
Google Docs Viewer
Allows you to view documents and other files online with the google docs viewer.
1,394 users
TinyURL
A one-click tool to generate a tiny URL (tinyurl.com or is.gd) from your current URL and automatically copy it to the clipboard.
1,393 users
History Export
Quick and dirty history export/import
1,389 users
Bing2Google
This extension redirects searches on Bing to Google. This affects any standard Bing search on Firefox.
1,387 users
Change Case
Let you UPPERCASE, lowercase or tOGGLE any selection of text in an input or textarea field by choosing a Change Case item in your context menu.
1,376 users
Horiz.io
Calcul automatique du rendement brut sur les annonces des plus grands sites immobiliers grâce à Horiz.io.
1,373 users
Drag-Select Link Text
Select link text with easy mouse gestures.
1,373 users
Plugin el-Dok
Plugin el-Dok
1,369 users
Cyber-Ark Clipboard Extension
Provides integration for Cyber-Ark products with the user's clipboard. (C) Cyber-Ark Software, Ltd. All rights reserved. Compatible with FireFox versions 66+
1,366 users
Morning Coffee Quantum
The Quantum-compatible version of the old favorite. Open daily websites with the click of a button! Users can customize lists for each day of the week, as well as an "every day" list.
1,360 users
Close Tabs Shortcuts
Adds keyboard shortcuts for closing all not active tabs, all to the left of the active one, all to the right
1,358 users
KDE Connect
Allows sharing pages, videos, and images from your browser to KDE Connect devices. This extension relies on a Native Messaging Host to communicate with KDE Connect devices. See https://github.com/pdf/kdeconnect-chrome-extension for installation.
1,355 users
Iridium for YouTube
YouTube with more freedom
1,350 users