Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
417,448 个用户
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
99,778 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.
64,282 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!
48,542 个用户
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
29,853 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!
6,377 个用户
Indie Wiki Buddy
Helping you discover quality, independent wikis! When visiting a Fandom wiki, Indie Wiki Buddy redirects or alerts you of independent alternatives. It also filters search engine results. BreezeWiki is also supported, to reduce clutter on Fandom.
63,367 个用户
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
61,765 个用户
Kagi Search for Firefox
A simple helper extension for setting Kagi as a default search engine, and automatically logging in to Kagi in private browsing windows.
19,595 个用户
Remove Paywall
Remove paywalls from articles legally by searching public internet archives.
14,294 个用户
MAL-Sync
MAL-Sync enables automatic episode tracking between MyAnimeList/Anilist/Kitsu/Simkl and multiple anime streaming websites.
12,500 个用户
Terms of Service; Didn’t Read
“I have read and agree to the Terms” is the biggest lie on the web. We aim to fix that. Get informed instantly about websites' terms & privacy policies, with ratings and summaries from the www.tosdr.org initiative.
11,533 个用户
Paywall remover 2025
Access full articles without a paywall by finding them in archive sites
8,161 个用户
Scholarscope
自动加载PubMed搜索结果中期刊的信息，显示它们的影响力以及所在领域的排名。 Pubmed是美国国立卫生研究所管理的、向全球开放的数据库。用户可以在网站上检索已经或是即将发表的文献，并查看这些文献的相关信息，包括作者、期刊、发表日期、摘要和下载信息。网站链接为 https://pubmed.ncbi.nlm.nih.gov/
8,121 个用户
wiki.gg Redirect
Redirects all requests from wikis that have moved to wiki.gg from their former host.
6,598 个用户
