Just last week I opted in to Firefox's multiprocess branch, and one of my biggest complaints is that this breaks pretty much every extension. I eagerly welcome this if it can replace Ghostery.

Out of curiosity, which extensions are broken for you?

I've been running multiprocess Firefox as well, and every extension that I use regularly still works. The only exception was Vimperator, so I had to write my own extension to give Vim keybindings[0], since none of the others support e10s.

I'm curious which extensions have given you trouble, since Ghostery, NoScript, and uBlock all work for me (at least for the most part).

EDIT: I forgot that some extensions may need to be disabled/re-enabled the very first time after enabling e10s[1].

[0] https://github.com/ChimeraCoder/electrovim

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=947030

Ghostery's icon was still showing up in the UI, but the number always read 0 and it was clearly not blocking anything.

The other two that were broken were FindBar Tweak (highlights ctrl+f results in the scrollbar like Chrome) and TileTabs.

Everything's broken for me too, I didn't realize it was the multiprocess thing, but it makes sense. Everything from Lastpass to Vimperator to Ghostery is behaving erratically.

I guess that's why pages have just decided to take four times as long to load.

http://arewee10syet.com/ Ad blockers, password managers, and download helpers seem to be the most commonly broken.

ublock origin and umatrix work fine.

It seems that their protection is based on Disconnect. Does that mean I can get the same level of protection with this feature instead of using Disconnect?

Good question. And a corollary: is Disconnect redundant with this feature turned on?