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Bing and plastic umbrella are trying to override the Firefox browser and I don't know how to block them

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Plasticumbrella overrode the browser when an Application update came up which I thought was for my computer applications (Mac) so I deleted it in preferences and re-instated Firefox and rebooted but then Bing somehow took over?

Plasticumbrella overrode the browser when an Application update came up which I thought was for my computer applications (Mac) so I deleted it in preferences and re-instated Firefox and rebooted but then Bing somehow took over?

Additional System Details

Installed Plug-ins

  • Shockwave Flash 25.0 r0

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:53.0) Gecko/20100101 Firefox/53.0

More Information

cor-el
  • Top 10 Contributor
  • Moderator
17468 solutions 157853 answers

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window
Start Firefox in <u>Safe Mode</u> to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem. *switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance *do NOT click the "Refresh Firefox" button on the Safe Mode start window *https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode *https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
FredMcD
  • Top 10 Contributor
4245 solutions 59390 answers

https://malwarefixes.com/remove-plasticumbrella-malware-removal/ Remove Plasticumbrella - Malware Removal - MalwareFixes

You may have ad/mal-ware. Further information can be found in this article; https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.

https://malwarefixes.com/remove-plasticumbrella-malware-removal/ Remove Plasticumbrella - Malware Removal - MalwareFixes You may have ad/mal-ware. Further information can be found in this article; https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.