1224155 - Flash player fails to load and start in Firefox 41/42 on OS X 10.10

Status: RESOLVED INVALID

(Core Graveyard :: Plug-ins, defect)

Description

[barry]

Attachment: Screenshot of Flash content failing to load, FireBug show Object element greyed out.

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
Build ID: 20151029151421

Steps to reproduce:

Tested on another Mac running Firefox 42 & OS X 10.8. I also downgraded both machines to run FireFox 32 and there were no problems in starting and running Flash Player, so it isn't OS X causing the problem. Flash Player also runs perfectly in all other major browsers on both machines. Both machines also run the latest version of Flash Player.


Actual results:

Flash Player fails to start. SWF doesn't load. Context menu for Flash player is unavailable. Using FireBug I can see that object element is greyed out. This is the page I was testing with: http://ecg.southwales.ac.uk/login/adult_male/index.html and Flash player fails to start; screenshot attached
I have had the same issue with Flash on other sites, in particular those using Flash for embedded video, such as YouTube.


Expected results:

Flash Player should have started and the SWF should have loaded and started playing.

Comment 1

[barry]

Bug arose out of corrupted profile. Profile fixed, bug disappears.