Qwant by Qwant

Tracking protection
This extension makes Qwant your default search engine. Nothing you search will ever leak out: this is your own business.
It activates Tracking Protection of Firefox everywhere on the web, and not only in private mode. Do Not Track is also activated to make websites aware you don't want to be tracked.

Qwant in one click
A Qwant button in the toolbar allows for easy access to complementary features of Qwant: Quick access to Boards and Qwant Bookmarks, activate tracking protection of Firefox, tuning of your Qwant account settings...

Essential features
With a few clicks, keep track of your favorite content using Qwant Boards. Qwant Bookmarks can create a handy list of shortcuts to your favorite sites. They are also directly accessible from the Bookmarks menu in Firefox. Finally, you can easily enable or disable the tracking protection.