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removed search engines keep coming back

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Search engines that I removed from my list of one-click search engines (in the Firefox options) reappear after a month or so. This has happened a couple of times already. I suspect that the reappearance is triggered by a Firefox update, but am not sure about that. The search engines that I keep removing and that keep reappearing after a while are - Bing - bol.com - Marktplaats.nl

I'm using Firefox on Windows 10 Home, with Dutch regional settings. I cannot find evidence of having (unwittingly) installed any Windows applications or Firefox extensions or plugins associated with these search engines (except that Bing is a Microsoft product and might be integrated into the operating system). Neither "bol.com" nor "marktplaats" occur in my Windows registry.

What is causing these search engines to keep reappearing? How can I prevent them from reappearing? I notice an option in the "General" section of Firefox options whose description (translated to English) is "Update search engines automatically". Is that the reason for the unwanted search engines reappearing? I figured that that option meant "update the search engines from your list automatically" and would not install search engines that aren't currently in my list.

Search engines that I removed from my list of one-click search engines (in the Firefox options) reappear after a month or so. This has happened a couple of times already. I suspect that the reappearance is triggered by a Firefox update, but am not sure about that. The search engines that I keep removing and that keep reappearing after a while are - Bing - bol.com - Marktplaats.nl I'm using Firefox on Windows 10 Home, with Dutch regional settings. I cannot find evidence of having (unwittingly) installed any Windows applications or Firefox extensions or plugins associated with these search engines (except that Bing is a Microsoft product and might be integrated into the operating system). Neither "bol.com" nor "marktplaats" occur in my Windows registry. What is causing these search engines to keep reappearing? How can I prevent them from reappearing? I notice an option in the "General" section of Firefox options whose description (translated to English) is "Update search engines automatically". Is that the reason for the unwanted search engines reappearing? I figured that that option meant "update the search engines from your list automatically" and would not install search engines that aren't currently in my list.

Additional System Details

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Application

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Shadow110 1072 solutions 14836 answers

HI, I would think as not familiar with Dutch engines that it maybe possible that something has gotten past your Extensions and security. Please Check with a dedicated Malware Scanner :

You can try these free programs to scan for malware, which work with your existing antivirus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista if you don't already have one. Windows 8/10 have antivirus protection built-in.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!

HI, I would think as not familiar with Dutch engines that it maybe possible that something has gotten past your Extensions and security. Please Check with a dedicated Malware Scanner : You can try these free programs to scan for malware, which work with your existing antivirus software: * [https://www.microsoft.com/en-us/wdsi/products/scanner Microsoft Safety Scanner] * [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware] * [http://support.kaspersky.com/viruses/disinfection/5350 Anti-Rootkit Utility - TDSSKiller] (for more info, see this [https://www.bleepingcomputer.com/download/tdsskiller/ alternate TDSSKiller download page]) * [https://www.malwarebytes.com/adwcleaner/ AdwCleaner] (for more info, see this [http://www.bleepingcomputer.com/download/adwcleaner/ alternate AdwCleaner download page]) * [http://www.surfright.nl/en/hitmanpro/ Hitman Pro] * [http://www.eset.com/us/online-scanner/ ESET Online Scanner] [https://support.microsoft.com/help/14210/security-essentials-download Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista if you don't already have one. Windows 8/10 have antivirus protection [https://www.microsoft.com/windows/windows-defender built-in]. Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article. Did this fix your problems? Please report back to us!
jacquelynj59 0 solutions 1 answers

I have this same problem with a search engine called 'Web + Videos'. I have never heard of it. I removed it, it came back. I removed it and restarted my computer - it comes back. Cannot get rid of it.

I have this same problem with a search engine called 'Web + Videos'. I have never heard of it. I removed it, it came back. I removed it and restarted my computer - it comes back. Cannot get rid of it.
cor-el
  • Top 10 Contributor
  • Moderator
17569 solutions 158912 answers

Hi jacquelynj59

This thread is about the builtin default Dutch search engines that somehow were restored.

  • "google", "bing", "bolcom-nl", "ddg", "ebay-nl", "marktplaats-nl", "wikipedia-nl"

You have a different problem, either caused by an extension or by malware.

If this doesn't help then please start a new thread.

Hi jacquelynj59 This thread is about the builtin default Dutch search engines that somehow were restored. *"google", "bing", "bolcom-nl", "ddg", "ebay-nl", "marktplaats-nl", "wikipedia-nl" You have a different problem, either caused by an extension or by malware. *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 *https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware If this doesn't help then please start a new thread. *https://support.mozilla.org/questions/new