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.

Search Support

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

log in to xmarks.com

  • 1 reply
  • 7 have this problem
  • 9 views
  • Last reply by FredMcD

more options

There is a pop up box from xmarks that is truncated that pops up when i start Firefox. It will not go away and I cant clock anywhere on the screen- Normally the box has an area to log on for password etc, it is just a small white box that will not go away and I have to press control alt delete to get out of firefox as I cant x out- I am on Chrome now as I cannot use Firefox -

There is a pop up box from xmarks that is truncated that pops up when i start Firefox. It will not go away and I cant clock anywhere on the screen- Normally the box has an area to log on for password etc, it is just a small white box that will not go away and I have to press control alt delete to get out of firefox as I cant x out- I am on Chrome now as I cannot use Firefox -

All Replies (1)

more options

It could be the work of one of your add-ons, or even add / malware.

Start Firefox in Safe Mode {web link} While you are in safe mode;

Look thru your add-ons list and make sure you know what each one is there for. Also, check the programs that are on your computer

Windows: Start > Control Panel > Uninstall Programs. Mac: Open the "Applications" folder Linux:

  • Ubuntu Unity {web link}
  • Xfce: Applications Menu category sections
  • options depends on the package manager and the desktop environment

Go thru the list. If you find something that you don't know what it is, use a web search.

Troubleshoot Firefox Issues Caused By Malware {web link}