Ubuntu
ubufox package

  1. Bug #579091
  2. Comment #4

Comment 4 for bug 579091

Revision history for this message
Stefan Fleiter (stefan-fleiter) wrote :

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.