Unless I add accessibility.lastLoadDate to my prefs.js file, there is no sound in Firefox
This is in a shared Citrix XenApp environment running Firefox version 56.0.2 (64-bit).
There is no sound at all when testing multiple sites/formats. I compared my prefs.js file to a user with working sound, and found that adding this to my file fixes the issue: user_pref("accessibility.lastLoadDate", 1511360000);
The value doesn't seem to matter, as long as it's valid (I tried with 0, and there was no sound). After putting it in place, if I use about:config to reset that value, I'm again left with no sound.
Any input would be greatly appreciated.
All Replies (4)
We have since updated to 57.0.2 and still have the problem.
Was this a clean install of FF and was the sound working before this problem? And did you uninstall and reinstall the sound driver to insure it didn't get corrupted?
Sound worked prior to upgrading from v55 to v56. The upgrades were performed using the full standalone installer.
All other installed browsers and applications have no sound issues.
Today we found another possible solution, although I don't know why it works.
Setting user_pref("security.sandbox.content.level", 1); allows sound in Firefox. The previous value was 3. There was also no sound when set to 2.
As this seems more straightforward than dealing with a setting that uses a date value, we have added the following line to the %ProgramFiles(x86)%\Mozilla Firefox\mozilla.cfg file: lockPref("security.sandbox.content.level", 1);
I have tested with existing and new profiles, and sound is now working. We'll stick with this unless I hear a better solution from the Mozilla community.