1320445 - FF 50 unresponsive after update from FF 49

Status: RESOLVED INCOMPLETE

(Firefox :: Untriaged, defect)

Description

[bdzr003]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:50.0) Gecko/20100101 Firefox/50.0
Build ID: 20161114144739

Steps to reproduce:

Yesterday I installed FF 50 over my existing FF 49.0.2 on Win7. 


Actual results:

Prior to the update, I never had any issues with FF. Now, FF 50 freezes, that is:

* I can launch it
* It will show as two tabs in the task bar
* It will let me type a URL but will not respond to Enter, i.e. not load the page
* It will not let me open the settings screen
* It will not close when clicking on the X in the upper right corner

The only add-on I've installed is uBlock origin.

I deleted the profile folder. After that, FF asked me whether to import stuff from IE (which I take is the normal behaviour). It will let me open the settings screen and respond normally. However, after closing FF and restarting it, the same behaviour as described above can be observed.

Repeating the exercise (deleting the profile folder) has the same effect again.

Btw, FF 50 from portableapps.com works like a charm (workaround for now).


Expected results:

Normal functionality.

Comment 1

[Loic]

Does it work better if youstart Firefox in safe mode?
https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Comment 2

[Justin [:JW_SoftvisionQA]]

I can reproduce this issue on  	Mozilla/5.0 (Windows NT 6.3; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0

The issue however does go away when in safemode.

Comment 3

[Justin [:JW_SoftvisionQA]]

closing due to lack of response from the reporter. Please reopen if this issue still persists.