Install xul-ext-password-editor by entering the following commands in the terminal:
sudo apt update sudo apt install xul-ext-password-editor
Description:
edit password manager entries in Mozilla applications
This extension allows you to enter data into the Password Manager database instead of relying on Firefox/Iceweasel, Thunderbird/Icedove, SeaMonkey/Iceape, etc., to do it, as well as making changes to existing entries. . This add-on also adds commands to the Password Manager window, which it makes accessible through Tools > Saved Passwords as well as a toolbar button.
Homepage: https://addons.mozilla.org/en-US/firefox/addon/saved-password-editor/
Version: 2.10.3-1
Section: universe/web