2015-08-27 21:38 GMT+02:00, Patrick O'Callaghan pocallaghan@gmail.com:
Currently Firefox tabs are not separate processes. Mozilla has been working on it for a while now but it will mean a change to the add -ons system. See http://arstechnica.com/information-technology/2015/08/mozil la-sets-plan-to-dump-firefox-add-ons-move-to-chrome-like -extensions/
I don't think it follows from this that javascript running in background tabs couldn't be suspended. Actually, the existence of the extension Roberto mentioned above seems to prove that they can.
No doubt that is true, but my point is that Mozilla are working on a more comprehensive change so I doubt they'll bother with an interim solution such as this. Especially as they could have done it at any time in the past.
Ah, OK, I see!
Andras