cpu at 99% by firefox

[Patrick O'Callaghan]

On Thu, 2015-08-27 at 22:54 +0930, Tim wrote:
> On Tue, 2015-08-04 at 12:40 +0200, Roberto Ragusa wrote:
> > This abandoned extension is incredibly useful:
> >  
> > https://www.dropbox.com/s/61ovoc4hzgtm0qf/Suspend-background-tabs-m
> > aster.xpi?dl=0
> >  
> > Javascript is disabled for all background tabs, so they won't use
> > CPU
> > time anymore.
> 
> I always wondered why that sort of thing wasn't the default.  Other
> than
> listening to some music being played from a backgrounded tab, you
> can't
> do much with a web page that you're not currently looking at.  It
> doesn't seem practical to let it suck up your CPU while you're trying
> to
> do other things.

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/

poc