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Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
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Copy Plain Text without any formatting
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Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.
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Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
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Save a complete web page (as currently displayed) as a single HTML file that can be opened in any browser. Save a single page, multiple selected pages or a list of page URLs. Automate saving from command line.
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Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer
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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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An easy-to-use font inspector to get CSS styles of the selected element
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Select a number of links with a rectangle and open them in new tabs. You can also lasso checkboxes to quickly check or uncheck them. Works with radio buttons as well.
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Easily print any page to PDF with just one click!
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A highly customizable dark theme for Google products (search, images, translate, and contacts)
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Open current page or link in Microsoft Internet Explorer browser
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This add-on allows you to quickly generate a QR code offline with the URL of the open tab or any (selected) other text! đź‘Ť
It works completely offline protecting your privacy and has a big range of features like colored QR codes!
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Add download link to all SoundClould tracks
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With the Bookmarks Organizer it's easy to put order in your bookmarks. The Bookmarks Organizer finds no longer working bookmarks, redirects, duplicates and more!
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Download youtube videos as mp3/mp4/ogg/webm fast and easy! Adding mirrors everyday to decrease any downtime! We monitor comments and work to fix any problems as soon as possible!
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Switch to mobile view with one click via toolbar button.
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Yomichan turns your browser into a tool for building Japanese language literacy by helping you to decipher texts which would be otherwise too difficult tackle. It features a robust dictionary with EPWING and flashcard creation support.
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Easy to use and powerful image downloader for your browser
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Record your computer's screen with just one click!
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Speed Dial allows you to add and manage bookmarks in the New Tab page and gives you an optional search experience.
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Take tabs from parent windows and arrange them in layouts of tiled sub-windows, using the toolbar button, context menu or keyboard shortcuts. Makes it easy to browse, compare or monitor multiple pages. Synchronize scroll. Save and re-open layouts.
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Custom color schemes for all websites: night mode, dark themes, blue light filter, screen shader, high contrast, grayscale, etc.
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Traditional and Simplified Chinese Converter
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Right click on an image to search Google for related images or versions in different sizes.
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a handy multi-language translator built on top of Google translate.
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Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
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Add, modify or remove a header for any request on desired domains.
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Auto Fullscreen for Firefox Quantum
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Open the link in a new tab depending on the setting.