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Add-On symbols disappeared from Toolbar, don´t work but are still "Activated" in the Add-On Menu

Turboklaus
Turboklaus
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After re-installing my PC I also installed a fresh Firefox and added all my standard Plug-Ins. Everything worked perfectly fine with perfect stability. Then all of a sudden, probably after clearing History all these plug-ins disappeared from the toolbar and also don´t work (seeing commercials on youtube etc.). Only 1 Plug-In is still displayed and still works (NordVPN). I´ve been looking for solutions but didn´t find anything on this problem. There´s one fact that makes it a little special: all of the Add-Ons are in the Menu/Add-On Tab and activated, no problems appear. (Screenshot)

After re-installing my PC I also installed a fresh Firefox and added all my standard Plug-Ins. Everything worked perfectly fine with perfect stability. Then all of a sudden, probably after clearing History all these plug-ins disappeared from the toolbar and also don´t work (seeing commercials on youtube etc.). Only 1 Plug-In is still displayed and still works (NordVPN). I´ve been looking for solutions but didn´t find anything on this problem. There´s one fact that makes it a little special: all of the Add-Ons are in the Menu/Add-On Tab and activated, no problems appear. (Screenshot)
Attached screenshots

Modified by Turboklaus

All Replies (1)

user104147805413306348376805769878442569366
user104147805413306348376805769878442569366
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Hi Turboklaus, Are you in a Private Browsing window or permanent Private Browsing Mode? Only the NordVPN extension is set to be active in Private Browsing.