Profile Manager no longer works properly after update to FF 29.
I am a developer and I previously used the profile manager to manage 3 instances of Firefox. I had one open for Development, 1 for testing and 1 for production. Each was color coded by a theme for easy discernment of which instance I was in. After the update to 29, the profile manager no longer seems to work properly. The theme from one profile proliferates to all the profiles and it is now very difficult to tell what instance I am in.
Opaite Mbohovái (3)
I don't believe we changed anything about the profile manager in Firefox 29. Could it be that you have the profiles signed into the same sync account?
Are these Personas still showing as installed in "Firefox/Tools > Add-ons > Appearance" ?
The Persona (lightweight theme) selection and other installed Personas are stored in the prefs.js file as lightweightThemes.usedThemes pref.
I found that after Firefox v29, a LOT of my settings and
add-ons were changed / reset. Try this;
Start Firefox in Safe Mode
While you are in safe mode;
Firefox Options > Advanced > General.
Look for and turn off Use Hardware Acceleration.
Then check ALL of your settings. Browser and add-ons. Then restart.