Ecosia is a search engine that uses 80% of its profits from ad revenue to plant trees. By searching with Ecosia you can help the environment for free. This extension adds Ecosia.org as the default search engine to your Firefox browser. Give it a try!
TinEye is a reverse image search engine. The extension adds a context menu item so you can search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
Block unwanted dangerous malware while keeping your personal information safe. Fraudscore's Artificial Intelligence tracks and blocks shady advertisements, malicious websites, and software that tries to steal your personal information.
This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.
Between simple tweaks such as placing the findbar in the top corner, to the powerful "Find in All Tabs" tool, it has everything to make the Find Toolbar a powerful and accessible research tool!
Discover great sites and earn money: This Add-on simply sets Wisedock as your browser home page. With Wisedock you discover interesting websites, support social projects and earn some money. Use this Add-on if you are located in Europe.
Search with Lilo to finance social and environmental projects. Use the optionnal Lilo's home page to follow social and environmental news (change your newtab and startup page to Lilo). Finance social and environmental projects when buying on the web
Sets the Useragent of Firefox Android to Chrome whilst browsing Google's search. This provides the more feature rich Webkit experience. Source Code is available here: https://github.com/JonathanNakandala/Chrome-UA-for-Firefox-Android-on-Google
Use Flixtab Search extension to search the web!
This Add-on will change your default search provider, thus offering you a convenient web search experience from your Firefox address bar.
Image Search Options provides a set of highly customizable reverse image search context menu options.