DuckDuckGo Privacy Essentials
隐私保护，操作简单。当您遨游于网络时，我们的插件所提供的隐私保护功能能够让您时刻掌控个人信息安全：跟踪阻断、更智能化的加密方式、DuckDuckGo隐私保护搜索等等。
1,254,341 个用户
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
431,249 个用户
Web Archives
View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.
66,818 个用户
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
58,804 个用户
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.
46,549 个用户
Image Search Options
A customizable reverse image search tool that conveniently presents a variety of top image search engines.
39,628 个用户
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!!!.
38,075 个用户
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!
18,437 个用户
YouTube Search Fixer
Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.
16,632 个用户
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
10,767 个用户
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!
7,343 个用户
AdBlock 广告过滤器 版
最受欢迎的 Chrome 和 Safari 广告拦截工具，现在也支持 Firefox 啦！ 可以拦截所有网页上的所有广告，以及 Facebook、YouTube 和 Hulu 上的广告。 还可以让您的浏览器变得更快！ 大部分广告根本就不会被下载，节约您的时间和带宽。
1,313,701 个用户
Honey
Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
414,767 个用户
Ecosia — The search engine that plants trees 🌱
This extension adds Ecosia.org as the default search engine to your browser — it’s completely free!
284,565 个用户
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
205,061 个用户
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.
86,437 个用户
Qwant - Search engine & tracker blocker
The Qwant extension sets qwant.com as your default search engine and blocks trackers.
85,188 个用户
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.
72,529 个用户
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
71,866 个用户
