>And sadly, Firefox is the only browser that does this.
Not any more, I recently discovered that my firefox at work got infected with Firefox Pioneer. I didn't install that, it just appeared on list of my addons, no warning or anything. I heard on Reddit about similar cases from a few months ago, people got Safe Browsing installed without their knowledge. Both are signed addons from Mozilla.
https://addons.mozilla.org/pl/firefox/addon/firefox-pioneer/
>at work
Is youre IT group policy doing this?
Small company, we don't have such policies, root account on my PC at work belongs to me. It's Ubuntu.
your
Safe browsing is now built in to Firefox (and Chrome) so I'm not sure what you're seeing there. It hasn't shipped as an addon for quite some time.
> Participation is voluntary, and you can remove yourself by disabling the add-on after you install it.
So it sounds like a bug or another case of non-malice. Tried reporting it at http://bugzilla.mozilla.org/?