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addonbrowser.com/video-flash-download-manager, hijacked tabs. How do I remove it?

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Upon starting Firefox. (64.0 (64-bit), Ubuntu 16.04), an Addon, which I thought I had -but is not listed in my addons-, "{link to malware removed} , asked to send notifications. I usually deny, but as I mentioned, I thought I had this add-on installed, so I accepted. It then opened these tabs:

     1.  https://win-big-bonus-here.com/?u=7pfk605&o=e93bvvr&t=1577914_proads_gambling.
     2.  https://www.amazon.com/s/ref=nb_sb_ss_c_1_20?url=search-alias%3Daps&field-                keywords=Genius+surface+pro+3+charger&sprefix=surface+pro+3+charger.

I don't have this addon listed, either in my installed addons, or as an available addon. Where did it come from? And how do I get rid of it?

Upon starting Firefox. (64.0 (64-bit), Ubuntu 16.04), an Addon, which I thought I had -but is not listed in my addons-, "{link to malware removed} , asked to send notifications. I usually deny, but as I mentioned, I thought I had this add-on installed, so I accepted. It then opened these tabs: 1. https://win-big-bonus-here.com/?u=7pfk605&o=e93bvvr&t=1577914_proads_gambling. 2. https://www.amazon.com/s/ref=nb_sb_ss_c_1_20?url=search-alias%3Daps&field- keywords=Genius+surface+pro+3+charger&sprefix=surface+pro+3+charger. I don't have this addon listed, either in my installed addons, or as an available addon. Where did it come from? And how do I get rid of it?

Modifié le par Matt

Solution choisie

Thank you all for your replies. Cor-el, a couple of those "abouts"- were a little over my head. Hopefully, I can learn how to use those "serviceworkers" and "websockets" things.

  But, yes, I did get those notifications again, but only 2 more times upon starting Firefox.  After that it's not happened any more.   Totally baffles me!  If it re-occurs, I will definitely post again.  Again, thank you all.

-Apeman

apeman said

Upon starting Firefox. (64.0 (64-bit), Ubuntu 16.04), an Addon, which I thought I had -but is not listed in my addons-, "{link to malware removed} , asked to send notifications. I usually deny, but as I mentioned, I thought I had this add-on installed, so I accepted. It then opened these tabs: 1. https://win-big-bonus-here.com/?u=7pfk605&o=e93bvvr&t=1577914_proads_gambling. 2. https://www.amazon.com/s/ref=nb_sb_ss_c_1_20?url=search-alias%3Daps&field- keywords=Genius+surface+pro+3+charger&sprefix=surface+pro+3+charger. I don't have this addon listed, either in my installed addons, or as an available addon. Where did it come from? And how do I get rid of it?
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I tried the link you posted, and my anti-virus sounded off;

Category: Intrusion Prevention Date & Time,Risk,Activity,Status,Recommended Action,IPS Alert Name,Default Action,Action Taken,Attacking Computer,Destination Address,Source Address,Traffic Description 12/13/2018 6:42:03 PM,High,An intrusion attempt by reddleops.pro was blocked.,Blocked,No Action Required,Web Attack: Fake Tech Support Domains 2,No Action Required,No Action Required,"reddleops.pro (199.80.54.115, 443)","FRED-PC (172.16.40.148, 62819)",reddleops.pro (199.80.54.115),"TCP, https" Network traffic from reddleops.pro matches the signature of a known attack. The attack was resulted from \DEVICE\HARDDISKVOLUME3\PROGRAM FILES (X86)\MOZILLA FIREFOX 54\FIREFOX.EXE.

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I called for more help. Go to your programs folder and remove anything newly installed.

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Fred, this is Linux and not the Windows you use.

apeman, what Extensions do you have listed as installed in Firefox even though you say none seem to have a similar name.

I do not use Ubuntu but I would think Ubuntu would not include such an extension with their Firefox package or separate Firefox related packages in package manager.

Firefox from www.mozilla.org/firefox/all certainly does not come with this video download extension.

Modifié le par James

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Do you keep getting tabs or was this a one time action?

You can check the Notifications under "Options/Preferences -> Privacy & Security -> Permissions".

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You can see all registered service workers on these pages: about:serviceworkers and about:debugging#workers You can check WebSockets via this page: about:networking#websockets See also serviceworker.txt in the profile folder.

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Solution choisie

Thank you all for your replies. Cor-el, a couple of those "abouts"- were a little over my head. Hopefully, I can learn how to use those "serviceworkers" and "websockets" things.

  But, yes, I did get those notifications again, but only 2 more times upon starting Firefox.  After that it's not happened any more.   Totally baffles me!  If it re-occurs, I will definitely post again.  Again, thank you all.

-Apeman

apeman said

Upon starting Firefox. (64.0 (64-bit), Ubuntu 16.04), an Addon, which I thought I had -but is not listed in my addons-, "{link to malware removed} , asked to send notifications. I usually deny, but as I mentioned, I thought I had this add-on installed, so I accepted. It then opened these tabs: 1. https://win-big-bonus-here.com/?u=7pfk605&o=e93bvvr&t=1577914_proads_gambling. 2. https://www.amazon.com/s/ref=nb_sb_ss_c_1_20?url=search-alias%3Daps&field- keywords=Genius+surface+pro+3+charger&sprefix=surface+pro+3+charger. I don't have this addon listed, either in my installed addons, or as an available addon. Where did it come from? And how do I get rid of it?