I can't activate the Add-ons toolbar

For more than a week now, I have not been able to activate the modules in the form of toolbars. I have three toolbars installed and none of them work for some reason any. I've updated my Firefox, I reset twice, I reinstalled the toolbars several times but nothing seems to work. I hope you can help. Thank you in advance!

Launch Firefox in Mode safe

While you are in safe mode;

Firefox Options > advanced > General.

Find and stop using hardware acceleration.

Tags: Firefox

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