Firefox Add-On has a malware effect

[JD]

Installed from the add-ons
"PDF Download"

It reformatted my firefox display so that
it creates a right margin at least 4 Inches
from the rightmost edge of the firefox window.
I uninstalled it, but the malware side effect
is still there.
I will try to communicate with the author of this
piece of unmentionable stuff.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.fedoraproject.org/pipermail/users/attachments/20140630/11dd5787/attachment.html>