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].
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.
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