- DuckDuckGo Search & Tracker Protection- Actively protects your data in your current browser - 1,194,340 users
- Search by Image- A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye. - 442,183 users
- Don't track me Google- Removes the annoying link-conversion at Google Search / maps / ... - 69,156 users
- Web Archives- View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is. - 66,806 users
- Clear Cache- Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included! - 57,787 users
- TinEye Reverse Image Search- Click on any image on the web to search for it on TinEye. Recommended by Firefox! Discover where an image came from, see how it is being used, check if modified versions exist or locate high resolution versions. Made with love by the TinEye team. - 45,082 users
- Image Search Options- A customizable reverse image search tool that conveniently presents a variety of top image search engines. - 38,313 users
- Dictionary Anywhere- View definitions easily as you browse the web. Double-click any word to view its definition in a small pop-up bubble. It also supports Spanish, German, French language alongside English. Enjoy Reading Uninterrupted!!!. - 36,546 users
- YouTube Search Fixer- Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens. - 33,495 users
- Emoji- It permits just with a single click to copy an emoji. There is a search-box and the "Most used emojis" section (the first one). If you want to send feedback or report bug, please contact me - 33,374 users
- Copy PlainText- Copy Plain Text without any formatting - 27,437 users
- Tabby - Window & Tab Manager- Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click! - 16,951 users
- ScrollAnywhere- Scroll page without touching scroll-bar! Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar. Features also: - "grab and drag" scrolling - customizable scrollbars! - the Momentum auto-scroll - 12,399 users
- Swift Selection Search- Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included! - 10,516 users
- GIPHY for Firefox- Bring the power of a GIF search engine anywhere on the web. Respond to emails, tweets and more with GIFs quickly and easily. Add GIPHY GIFs to your Gmail, Facebook, Twitter and more. Just search, drag and drop or right click! - 7,043 users
- 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. - 1,313,507 users
- Honey- Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK. - 372,987 users
- Ecosia — The search engine that plants trees 🌱- This extension adds Ecosia.org as the default search engine to your browser — it’s completely free! - 275,910 users
- Startpage- This extension protects users from being tracked while allowing them to search the web in complete private mode. - 204,586 users
- Wappalyzer- Identify technologies on websites - 123,357 users
- Google Scholar Button- Lookup scholarly articles as you browse the web. - 101,151 users
- Converter Suite & Custom Web Search- Add the Converter Suite & Custom Web Search extension to convert files by clicking the favicon on the toolbar & to access Yahoo!® search from your browser. - 83,349 users
- Qwant - Search engine & tracker blocker- The Qwant extension sets qwant.com as your default search engine and blocks trackers. - 81,271 users
- Citavi Picker- Citavi Picker ist ein Add-on für Nutzer der Software "Citavi - Literaturverwaltung und Wissensorganisation" (www.citavi.com). Mit dem Citavi Picker übertragen Sie Daten aus dem Web nach Citavi. - 76,548 users
- Unpaywall- Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles. - 70,599 users
























