This prevents the web.de mailcheck toolbar in version 1.4.1 from showing. Deactivating this extension and restarting Firefox cures the problem.
The toolbar can be downloaded here: https://produkte.web.de/mailcheck/ Simply click on the Firefox logo to install it.
This prevents the web.de mailcheck toolbar
in version 1.4.1 from showing.
Deactivating this extension and restarting Firefox cures the problem.
The toolbar can be downloaded here: /produkte. web.de/ mailcheck/
https:/
Simply click on the Firefox logo to install it.