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Almost every time I open a new page, and that page has an ad with movement or video, the browser page hides behind other open pages. This is really annoying.

MrMozilla
MrMozilla
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I don't see any evidence that this is malware. For instance i opened a page that was for a major newspaper from Dallas. As i reached my cursor to the page, it hid behind the other pages, and i had to now reach down to my taskbar to find it again. When i did, i saw an ad on the page with movement (flash?). Anyway, the ad was for breast cancer awareness, and was made by that newspaper, which is why i think it has nothing to do with malware. Same thing happens everyday with normal sites like Yahoo. Anytime an ad has movement or video, the page is only visible for a second, then hides behind the others. This has really become a major annoyance.

I don't see any evidence that this is malware. For instance i opened a page that was for a major newspaper from Dallas. As i reached my cursor to the page, it hid behind the other pages, and i had to now reach down to my taskbar to find it again. When i did, i saw an ad on the page with movement (flash?). Anyway, the ad was for breast cancer awareness, and was made by that newspaper, which is why i think it has nothing to do with malware. Same thing happens everyday with normal sites like Yahoo. Anytime an ad has movement or video, the page is only visible for a second, then hides behind the others. This has really become a major annoyance.

Alla svar (3)

Andrew
Andrew
  • Moderator
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Hello,

Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.

(If you're not using it, switch to the Default theme.)

  • On Windows you can open Firefox 4.0+ in Safe Mode by holding the Shift key when you open the Firefox desktop or Start menu shortcut.
  • On Mac you can open Firefox 4.0+ in Safe Mode by holding the option key while starting Firefox.
  • On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
  • Or open the Help menu and click on the Restart with Add-ons Disabled... menu item while Firefox is running.

FirefoxSafeMode

Once you get the pop-up, just select "'Start in Safe Mode" Safe Mode Fx 15 - Win

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one. Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article for that.

To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.

Thank you.

MrMozilla
MrMozilla Frågans ägare
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Thanks for the reply, feer56. I haven't tried safe mode because further research leads me to believe that it is an ongoing bug / conflict (more than a year old) between Firefox and Flash. Here is the link that I think describes what I am experiencing:

https://bugzilla.mozilla.org/show_bug.cgi?id=790013

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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Yes, that was my guess as well. More about the problem and known workarounds in this thread: Opening New Windows and Shockwave Flash.