Firefox freezes when using Audiogon

Almarg,
this was a security update. I’m looking at the log files & it seems that the message was from FF. The log file in the installation folder tells me it was a ’maintenance service’. The actual log file in the AppData folder has a bunch of PREPARE PATCH xxxx & PREPARE ADD xxx logs. It appeaars it was a legitimate FF security patch for me. Perhaps you’ve already done this security patch since you are so much more on top of this sort of thing compared to me?
Anyway, i’ve told the Flash player to "ask to activate’ & I installed Disconnect & uBlock.
i will monitor the performance with FF from now on & hopefully i’ll be in the same company as bpoletti, tls49, djohnson54, yourself & others.....

wow, i learnt a bit more computer software maintenance on Audiogon! Thanks Almarg for your guidance & thanks scott_w for raising this topic - an illterate (me) is a more literate. ;-)

You’re very welcome, Bombaywalla. FWIW, though, I’ve never seen a Firefox security patch other than the ones that are incorporated in updates corresponding to changes in the version number of the program, such as 44.0.2.

Best regards,
-- Al

@bombaywalla - Like Al, I've never had Firefox pop up and ask/warn me to install a security patch.  Quite a while back they switched to "silent" updates that only manifest themselves as a slower load time while the update is installing.  Also like Al, at this point I'd be worried that something else is really the cause of your problems.  I would scan my system pronto.  I've had the most luck with a product called Malwarebytes.  Like most software of this type, they hawk the premium version which you don't need so watch for offers to activate the premium version during install.  It's very important to run this type of software in Windows' safe mode (hold down the F8 key during bootup).  This gives the software the best chance to find and eliminate any threats.  If it finds anything, go ahead and remove it.  Then run it again and again until it doesn't find anything else.  Boot you machine back to normal mode, use it for a day or so and then repeat the process in safe mode to make sure something didn't sneakily reinstall itself.  There is malware that can even hide itself in old Windows restore points.

Dick

Almarg, djohnson54,
ok, you guys have me a bit worried now that i got duped by that FF security patch to install.... ;(
As Almarg suggested, I did look carefully at all the programs installed on my machine & nothing seems out-of-order i.e. i can explain each installed program. 
I will run Malwarebytes tonight. I have it installed & have been a user of the free version for several years now. i also have Bitdefender. I've been running them in normal operational mode (not safe mode). I will now run it in safe mode....
thanks once again guys.... 

@bombaywalla you're not alone.  I've cleaned up lots of machine for friends and colleagues.  The worst one I've seen to date had over 9,400 suspicious items according to Malwarebytes.  This was also a situation where a grandchild was playing numerous "free" games.  That one took a while to clean up!  Dick