Didier Lafleur

Add a link near password fields to hide or show passwords.

Save current page as PDF. Very simple. No permissions, no third-party server. Uses only built-in Firefox converter. Works on Windows and Linux, not on Mac.

Select some text, right-click and choose"Search image" in the menu, a Google Image tab will open with your results.

Open bookmarks in a new tab

Select some text, right-click and choose"Search in YouTube" in the menu, a new tab will open with the searched text.

A context menu to open images in a new tab

Open search results in a new tab. Above FF 61, works with the omnibox/awesomebar AND the dedicated search box.

Checks every 404 pages. If an archive exists in archive.org, a banner is displayed to open this archive.

Add a link in Wikipedia pages that opens new tab with related images. Results by Google images.