Can,t shutdown ff 34.05 on all of my 3 pc's. tried all options. problem remains.

Question

After an update of FF, all of my 3 computers have the same bug. I can't shut down FF. Remains working in the background.
The internet is full of the same complaint. Only way to close ff is through proces elimination.
Tried all of the options given by Mozilla and users like remove parent.lock or re-initializing etc. etc. Nothing works.
Should reinstall an older version or move to Chrome?
Hope some wizzard can let me see the light.
Frank
Amsterdam

Answer 1

From what I have been reading from other posts on this forum, the
issue may be caused by the clear history settings. It was suppose
to have been fixed in v30.
Type '''about:preferences#privacy''' <Enter> in the address bar.
The button next to '''History,''' select '''Use Custom Settings'''.
At the bottom of the page, turn on '''Clear History When Firefox Closes.'''
At the far right, press the '''Settings''' button. Turn on ONLY '''Cache''' and
'''Form And Search History''' leaving the others off.
This is not a cure but will make it easier if Firefox locks up in Windows.
'''https://support.mozilla.org/questions/997866''' {web link}