My email client is GMail. I have repeatedly marked emails from certain senders as spam. I have also set up filters to automatically delete emails with specific subjects or from specific senders. In spite of my filters, emails from some of the blocked senders make it into my Inbox, bypassing GMail’s and my filters.
In a similar vein, I have set Iceweasel to block certain cookies through Preferences/Privacy/Exceptions. Not only do these cookies keep being left on my system but the “Block” is being changed to “Allow”. Why is this happening?