791730 - 15.0.1 broke youtube embedded videos. now we only see the advertisement, works in all other browsers

Status: RESOLVED WORKSFORME

(Core :: General, defect)

Description

[Doris Pelger]

User Agent: Mozilla/5.0 (Windows NT 6.0; rv:15.0) Gecko/20100101 Firefox/15.0.1
Build ID: 20120905151427

Steps to reproduce:

Update to 15.0.1
Everything worked fine


Actual results:

ReferenceError: yt is not defined
http://www.youtube.com/embed/JCfd0_wBJgo
Line 44


Expected results:

Embed video

Comment 1

[Alice0775 White]

Works for me in 
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1 ID:20120905151427

Comment 2

[Loic]

Try in safe mode (https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode) then wit a new profile (https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles).

Does it work?

Comment 3

[Boris Zbarsky [:bzbarsky]]

Doris, I'm trying to understand the steps to reproduce.  I load the link in question.  Then what do I do?  I'm not seeing any JS errors, but I'm also not seeing any videos...

Comment 4

[Boris Zbarsky [:bzbarsky]]

Oh, is this the "Property Video" bit below the fold?  Playing that seems to work fine for me (on a Mac nightly, at least).

Comment 5

[Boris Zbarsky [:bzbarsky]]

Also works fine in Firefox 15.0.1, for me.

Comment 6

[Doris Pelger]

Hi there,

late this evening it suddenly worked - really weird.
b) I checked plugins and saw that flash was considered by firefox as outdated.
But I could not update shockwave flash with firefox because the .exe file did not open after having saved it and download was completed.
I disabled anti virus - firewall -> downloaded again yet this did not help.
Used IE to download flash from adobe web site. Installed flash and now it works.
Strange thing however all old flash plugins are now disabled in add ons - so how can it work now?



I have disabled the old adobe plugins in Firefox but now videos display correctly.