DuckDuckGo Privacy Essentials
保障私隱，從此簡單容易。我們的附加元件提供最全面的私隱保障工具，無論在網絡上的任何地域都可以有效控制你的個人資料：攔截追蹤、更高智能的加密功能、DuckDuckGo 隱藏搜尋等等，全面功能包羅萬有。
1,247,914 位使用者
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
419,025 位使用者
Web Archives
View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.
66,457 位使用者
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.
46,060 位使用者
Image Search Options
A customizable reverse image search tool that conveniently presents a variety of top image search engines.
39,481 位使用者
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!!!.
37,930 位使用者
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!
18,534 位使用者
YouTube Search Fixer
Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.
16,099 位使用者
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
12,407 位使用者
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
10,706 位使用者
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!
7,333 位使用者
AdBlock for Firefox
Chrome 與 Safari 上最受歡迎的廣告攔截程式，現在也支援 Firefox 了！ 所有網頁廣告皆可阻擋，連 Facebook、YouTube、Hulu 也不例外。 瀏覽速度也更快！ 大部分廣告甚至不會下載，節省時間與頻寬。
1,286,667 位使用者
Honey
Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
418,640 位使用者
Ecosia — The search engine that plants trees 🌱
This extension adds Ecosia.org as the default search engine to your browser — it’s completely free!
263,254 位使用者
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
202,057 位使用者
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.
86,204 位使用者
Qwant - Search engine & tracker blocker
The Qwant extension sets qwant.com as your default search engine and blocks trackers.
77,920 位使用者
Earth View 360° & Custom Web Search
Add Earth View 360° & Custom Web Search to access High Resolution 3D Maps & Yahoo Web Search
72,667 位使用者
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.
71,330 位使用者
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
69,966 位使用者
