How to add extensions to the menu bar
I installed several extensions (for the newest version) but among those only a single one, Video Download Helper appears in the customize menu. The others I can't appear on the header of Firefox, I can't add them, I can only check them in the addons manager. They are enabled, they are all up to date, except I cannot use them because they have no icons... I tried restoring the default setup in Firefox but it didn't solve the problem.
I installed several extensions (for the newest version) but among those only a single one, Video Download Helper appears in the customize menu. The others I can't appear on the header of Firefox, I can't add them, I can only check them in the addons manager. They are enabled, they are all up to date, except I cannot use them because they have no icons... I tried restoring the default setup in Firefox but it didn't solve the problem.
Opaite Mbohovái (1)
That question is best directed to the Addon creators as to how their Addons behave and install.