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a grey bar appears below bookmark bar with "Open Network Login Page" which opens a window to sign in to my router; is this a scam?

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see image attached

see image attached
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Additional System Details

Installed Plug-ins

Kaspersky only (I previously installed Teamviewer but uninstalled with CCleaner, and have MSOffice365 installed, but otherwise a clean system.

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

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My_Cheese_Is_Slippin'
  • Top 10 Contributor
84 solutions 876 answers

Helpful Reply

Hi wg8020, Probably. You should run some scans on your computer for malware - just to be sure. There are some tips and links for free scan tools in this article: Troubleshoot Firefox issues caused by malware

Hi wg8020, Probably. You should run some scans on your computer for malware - just to be sure. There are some tips and links for free scan tools in this article: [https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no Troubleshoot Firefox issues caused by malware]
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My_Cheese_Is_Slippin'
  • Top 10 Contributor
84 solutions 876 answers

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Don't forget - run the scans with Firefox closed.

Don't forget - run the scans with Firefox closed.
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McCoy
  • Top 10 Contributor
545 solutions 5139 answers

Hello wg8020,

This is probably related to captive portal detection - if you don't use this feature, then please do this :

Type in the address bar about:config and press Enter (promise to be careful, if asked)

Type in the search bar and look for the preference :

network.captive-portal-service.enabled and set its value to false.

Then close and restart Firefox.

See : https://en.wikipedia.org/wiki/Captive_portal

(edit : typo)

Hello wg8020, This is probably related to captive portal detection - if you don't use this feature, then please do this : Type in the address bar '''about:config''' and press Enter (promise to be careful, if asked) Type in the search bar and look for the preference : '''network.captive-portal-service.enabled''' and set its value to '''false'''. Then close and restart Firefox. See : https://en.wikipedia.org/wiki/Captive_portal (edit : typo)

Modified by McCoy

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My_Cheese_Is_Slippin'
  • Top 10 Contributor
84 solutions 876 answers

Hi wg8020, @McCoy forwarded this Reddit thread which is in regard to Captive Portal. I think it is interesting to point out that if you are not on a Captive Portal, it might be wise to figure out why you can't reach the URL. This may result in undesirable issues in the future.

Hi wg8020, @McCoy forwarded this [https://www.reddit.com/r/firefox/comments/c4ifqq/you_must_log_into_this_network_captive_portal_why/ Reddit] thread which is in regard to Captive Portal. I think it is interesting to point out that if you are ''not'' on a Captive Portal, it might be wise to figure out why you can't reach the URL. This may result in undesirable issues in the future.

Modified by My_Cheese_Is_Slippin'

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Question owner

Thanks all; It seems to be a temporary toolbar linked to the HH4 router. Not sure why it appeared and wanted me to download + install a "help program" but choosing "continue" with out downloading led to adverts for BT parental controls etc and declining all of these got rid of the toolbar. It looked rather suspicious initially, but installed Kaspersky / TSSkiller/ remote total virus all found nothing. I feel happier, and will report back if worse things happen. Thanks again. B Green

Thanks all; It seems to be a temporary toolbar linked to the HH4 router. Not sure why it appeared and wanted me to download + install a "help program" but choosing "continue" with out downloading led to adverts for BT parental controls etc and declining all of these got rid of the toolbar. It looked rather suspicious initially, but installed Kaspersky / TSSkiller/ remote total virus all found nothing. I feel happier, and will report back if worse things happen. Thanks again. B Green
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