This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ابحث في الدعم

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Gmail and other sites stop functioning normally

  • 4 ردود
  • 4 have this problem
  • 1 view
  • آخر ردّ كتبه cor-el

more options

This has happened to me with Pale Moon, and then I moved back to Firefox (23.0), which worked fine for a few days and then developed the same symptoms:

Google sites don't work correctly. Gmail shows the basic view, telling me to upgrade the browser. Google search doesn't show options, Google Play doesn't show a search bar.

MMORPG.com doesn't let me log in, complaining "Cookies not Detected".

Cookies are on (and are actually set by MMORPG.com, I cleared them and they were recreated) and Javascript is on, everything seems normal, and most sites work fine. However these two problems are enough to drive me crazy (in particular the Google sites problem).


Edit: I noticed that I have problems with some other sites.

This has happened to me with Pale Moon, and then I moved back to Firefox (23.0), which worked fine for a few days and then developed the same symptoms: Google sites don't work correctly. Gmail shows the basic view, telling me to upgrade the browser. Google search doesn't show options, Google Play doesn't show a search bar. MMORPG.com doesn't let me log in, complaining "Cookies not Detected". Cookies are on (and are actually set by MMORPG.com, I cleared them and they were recreated) and Javascript is on, everything seems normal, and most sites work fine. However these two problems are enough to drive me crazy (in particular the Google sites problem). Edit: I noticed that I have problems with some other sites.

Modified by ET3D

الحل المُختار

You have a general.useragent.override pref that is corrupting the user agent.

  • general.useragent.override: undefined GoogleToolbarBB

See:

Read this answer in context 👍 2

All Replies (4)

more options

By the way, I tried disabling GreaseMonkey, but that didn't help.

more options

الحل المُختار

You have a general.useragent.override pref that is corrupting the user agent.

  • general.useragent.override: undefined GoogleToolbarBB

See:

more options

Thanks a lot. I followed the instructions on the second link, and it looked like I ended up without a valid user agent. I ended up reinstalling (without uninstalling first) and that helped.

Do you have any idea how such a corruption might happen?

Modified by ET3D

more options

The GoogleToolbarBB in the name would suggest that this had been changed by the Google Toolbar. This toolbar has already been a long time not compatible with the current Firefox release, so I don't know when you last had it installed.