Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
437,815 users
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
103,481 users
Web Archives
View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.
66,281 users
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
55,664 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
32,771 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!
6,908 users
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
69,148 users
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.
64,948 users
Librezam
Open-source music recognition extension using Shazam API (also supports Audd, ACRCloud, Tencent, and NetEase APIs as alternative backends)
20,821 users
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.
19,299 users
Remove Paywall
Remove paywalls from articles legally by searching public internet archives.
12,540 users
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.
12,539 users
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/
9,067 users
Hide My IP Free
Hide Your IP Address and Unblock Websites for Free with the Hide My IP proxy and VPN IP network. Thousands of IPs around the world to choose from. Access your favorite streaming sites by changing your IP location. No ads or limitations.
8,018 users
wiki.gg Redirect
Redirects all requests from wikis that have moved to wiki.gg from their former host.
6,949 users
MetaGer Search
Privacy has never been so easy. Sets MetaGer as your default search engine and manages search settings for you.
6,836 users
Paywall remover 2025
Access full articles without a paywall by finding them in archive sites
6,069 users
