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Why are adblocks closing the about:addons page?

Posted

Hello.

I noticed something ever since this last update, and the problem is that any ad-block add-on or Noscript add-on blocks the ability to go to the extras for Firefox page (about:addons on the address bar). I tried 3 different ad-blocks (ABP, Uorigin and adblock) and all instantly close the extras page, not even able to configure or whitelist it either. Is anyone having the same issue? is there any solution for this, other than starting FF in safety mode?

Thanks in advance

Hello. I noticed something ever since this last update, and the problem is that any ad-block add-on or Noscript add-on blocks the ability to go to the extras for Firefox page (about:addons on the address bar). I tried 3 different ad-blocks (ABP, Uorigin and adblock) and all instantly close the extras page, not even able to configure or whitelist it either. Is anyone having the same issue? is there any solution for this, other than starting FF in safety mode? Thanks in advance

Chosen solution

I can access about:addons just fine with uBlock Origin installed on all versions of Firefox currently being offered (Fx, FxBeta FxDevEdition, FxNightly)

You mention that it works in safe mode. I see a add-on labeled FF AntiVirus Check 9.0.0 ({4cbef3f0-4205-4165-8871-2844f9737602}) . I can't find that on AMO so its probably malicious and the reason why you are unable to access the add-ons page. Try doing a refresh to get rid of it but before doing so, go into your profile folder (about:support --> Profile directory --> Open Folder --> Extensions. Find and delete any entry of FF AntiVirus Check or its UUID (4cbef3f0-4205-4165-8871-2844f9737602})

he Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information.

Note: When you use this feature, you will lose any extensions, toolbar customizations, and some preferences. See the Refresh Firefox - reset add-ons and settings article for more information.

To Refresh Firefox:

  1. Open the Troubleshooting Information page using one of these methods:
    • Click the menu button New Fx Menu , click help Help-29 and select Troubleshooting Information. A new tab containing your troubleshooting information should open.
    • If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
  2. At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it.
  3. Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported.
  4. Click Finish and Firefox will reopen.
Read this answer in context 4

Additional System Details

Installed Plug-ins

  • Shockwave Flash 27.0 r0

Application

  • Firefox 57.0.2
  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
  • Support URL: https://support.mozilla.org/1/firefox/57.0.2/WINNT/pt-PT/

Extensions

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  • FF AntiVirus Check 9.0.0 ({4cbef3f0-4205-4165-8871-2844f9737602})
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  • Tab Mix Plus 0.5.0.4 ({dc572301-7619-498c-a57d-39143191b318}) (Inactive)
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Javascript

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  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11
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Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
Moses
  • Moderator
459 solutions 3602 answers

Chosen Solution

I can access about:addons just fine with uBlock Origin installed on all versions of Firefox currently being offered (Fx, FxBeta FxDevEdition, FxNightly)

You mention that it works in safe mode. I see a add-on labeled FF AntiVirus Check 9.0.0 ({4cbef3f0-4205-4165-8871-2844f9737602}) . I can't find that on AMO so its probably malicious and the reason why you are unable to access the add-ons page. Try doing a refresh to get rid of it but before doing so, go into your profile folder (about:support --> Profile directory --> Open Folder --> Extensions. Find and delete any entry of FF AntiVirus Check or its UUID (4cbef3f0-4205-4165-8871-2844f9737602})

he Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information.

Note: When you use this feature, you will lose any extensions, toolbar customizations, and some preferences. See the Refresh Firefox - reset add-ons and settings article for more information.

To Refresh Firefox:

  1. Open the Troubleshooting Information page using one of these methods:
    • Click the menu button New Fx Menu , click help Help-29 and select Troubleshooting Information. A new tab containing your troubleshooting information should open.
    • If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
  2. At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it.
  3. Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported.
  4. Click Finish and Firefox will reopen.
I can access about:addons just fine with uBlock Origin installed on all versions of Firefox currently being offered (Fx, FxBeta FxDevEdition, FxNightly) You mention that it works in safe mode. I see a add-on labeled FF AntiVirus Check 9.0.0 ({4cbef3f0-4205-4165-8871-2844f9737602}) . I can't find that on AMO so its probably malicious and the reason why you are unable to access the add-ons page. Try doing a refresh to get rid of it but before doing so, go into your profile folder (about:support --> Profile directory --> Open Folder --> Extensions. Find and delete any entry of FF AntiVirus Check or its UUID (4cbef3f0-4205-4165-8871-2844f9737602}) he Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information. '''''Note:''' When you use this feature, you will lose any extensions, toolbar customizations, and some preferences.'' See the [[Refresh Firefox - reset add-ons and settings]] article for more information. To Refresh Firefox: # Open the Troubleshooting Information page using one of these methods: #*Click the menu button [[Image:New Fx Menu]], click help [[Image:Help-29]] and select ''Troubleshooting Information''. A new tab containing your troubleshooting information should open. #*If you're unable to access the Help menu, type '''about:support''' in your address bar to bring up the Troubleshooting Information page. #At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it. #Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported. #Click Finish and Firefox will reopen.
jscher2000
  • Top 10 Contributor
7436 solutions 60711 answers

I have NoScript and haven't noticed any problems like that.

I have NoScript and haven't noticed any problems like that.
jscher2000
  • Top 10 Contributor
7436 solutions 60711 answers

Not that you want malware lingering on your system, but if you could "quarantine" the questionable extension to a separate folder (I have a folder in my Downloads called VIRUS where I put questionable things) then later someone might request a copy to analyze.

Not that you want malware lingering on your system, but if you could "quarantine" the questionable extension to a separate folder (I have a folder in my Downloads called VIRUS where I put questionable things) then later someone might request a copy to analyze.

Helpful Reply

Thanks, it was indeed the FF AntiVirus Check 9.0.0 add-on that was creating a conflict, (pretty sure it was some type of adware/malware), though i can't show it now, it was a very very convincing page that prompt you to download (every single detail of Mozilla Firefox appearance was mimic perfectly), something Mozilla should check it out, and ban it.

Thanks, it was indeed the FF AntiVirus Check 9.0.0 add-on that was creating a conflict, (pretty sure it was some type of adware/malware), though i can't show it now, it was a very very convincing page that prompt you to download (every single detail of Mozilla Firefox appearance was mimic perfectly), something Mozilla should check it out, and ban it.
eeerrr 0 solutions 3 answers

In my case, it was FF Tool AdBlock 1.9.9 add-on that was creating a conflict, something Mozilla should check it out, and ban it.

In my case, it was '''FF Tool AdBlock 1.9.9''' add-on that was creating a conflict, something Mozilla should check it out, and ban it.
jscher2000
  • Top 10 Contributor
7436 solutions 60711 answers

Hi eeerrr, that sounds like one of those extensions which installs from the fake update page that can take over your screen. Since they are not distributed through the Mozilla Add-ons site, I think they do not get the same level of review. Do you recall where you got it from? I'm not sure of the best way to discover that; possibly a suspicious site in your history? (Not that you want to go back!)

Hi eeerrr, that sounds like one of those extensions which installs from the fake update page that can take over your screen. Since they are not distributed through the Mozilla Add-ons site, I think they do not get the same level of review. Do you recall where you got it from? I'm not sure of the best way to discover that; possibly a suspicious site in your history? (Not that you want to go back!)
James
  • Top 25 Contributor
  • Moderator
1437 solutions 9959 answers

There was a fake "FF Safe Helper" extension installed by a fake manual Firefox update scam that Mozilla blocked on January 8. One of the things this extension did was auto-closes about:addons as soon as it is opened.

https://blocked.cdn.mozilla.net/674b6e19-f087-4706-a91d-1e723ed6f79e.html https://addons.mozilla.org/blocked/

Btw the official abbreviation that Mozilla uses for Firefox is Fx and not the FF that many newer Firefox users may use.

There was a fake "FF Safe Helper" extension installed by a fake manual Firefox update scam that Mozilla blocked on January 8. One of the things this extension did was auto-closes about:addons as soon as it is opened. https://blocked.cdn.mozilla.net/674b6e19-f087-4706-a91d-1e723ed6f79e.html https://addons.mozilla.org/blocked/ Btw the official abbreviation that Mozilla uses for Firefox is '''Fx''' and not the FF that many newer Firefox users may use.

Modified by James