firefox problem

[ash2win]

i'm using firefox for browsing,
but,in these days its consumes high memory(almost 90% and above)
also
whenever i close it don't go out from the process list and i can't start it again.
i have updated to current version still it remains,sometimes the talkback extension appears and request to send error report.i have many extensions installed is that a problem?

[ranjan2001]

Yes one of these extension is surely causing problem, I had a similar problem & I was advised to disable all the extension & then start enabling 1 by 1 & see which one one is causing that problem & that way I was able to pick out the problematic extension & uninstalled it.