Vyhľadajte odpoveď

Vyhnite sa podvodom s podporou. Nikdy vás nebudeme žiadať, aby ste zavolali alebo poslali SMS na telefónne číslo alebo zdieľali osobné informácie. Nahláste prosím podozrivú aktivitu použitím voľby “Nahlásiť zneužitie”.

Learn More

Firefox tries to access weird websites each time it starts

  • 8 odpovedí
  • 1 má tento problém
  • 25 zobrazení
  • Posledná odpoveď od Jerome

more options

Hello Mozilla community! Merry Christmas!

I have noticed since yesterday (but maybe it is related to the 95.0.2 Firefox update) that Firefox tries to access some weird websites each time it starts.

The websites Firefox tries to access are various (non-exhaustive list):

Kaspersky Internet Security blocks all those access attempts and notifies me with a "Download denied" event and a "Probability of unauthorized software download" message (see uploaded image).

I immediately suspected one of my Firefox extensions, so I disabled them all... But the issue kept on occurring. Could Firefox be infected? (I ran Kaspersky Internet Security through my whole PC, and it found nothing ; I did the same with the free version of MalwareBytes ; nothing again).

I find it hard to believe that this behavior is normal and that these alerts are false positives from Kaspersky Internet Security... What do you think guys?

Regards, Jerome.

Priložené obrázky

Vybrané riešenie

Well... I am not sure it has been resolved but the issue is gone for now. I will mark this problem as "solved" anyway (maybe it is possible to reopen it if it comes back?)

Happy Christmas Eve guys!

Čítať túto odpoveď v kontexte 👍 0

Všetky odpovede (8)

more options

Here is extra information about my system:

  • Mozilla Firefox Browser 95.0.2 (64-bits) - all Firefox extensions disabled
  • Microsoft Windows 10 Home (21H2) Build 19044.1415 (2021-‎07-‎26)
  • Microsoft Windows Feature Experience Pack 120.2212.3920.0

Pomohla vám táto odpoveď?

more options

Hi Jerome

Which add-ons do you have installed (even if they are turned off)?

I am not suggesting that it is an add-on that is causing this, but something does not look right here.

Have you also tried clearing your browsing history?

Pomohla vám táto odpoveď?

more options

Does this happen when you start the browser, or while you are browsing?


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 free to use malware scanners. Each works differently. If one program misses something, another may pick it up.

Pomohla vám táto odpoveď?

more options

Hi Seburo, Hi FredMcD,

Thank you for answering my post.

The issue only occurs when Firefox starts. It does not seem to occur while I am browsing.

Here is my complete Firefox extension list:

  • Kaspersky Protection
  • Link Redirect Trace
  • Merriam-Webster Dictionary
  • OneTab
  • Privacy Badger
  • Search by Image
  • Signal Spam
  • Translate Web Pages
  • Undo Close Tab
  • Unhook - Remove YouTube Recommended Videos
  • Webmail Ad Blocker
  • AdGuard AdBlocker
  • Antidote
  • Bitwarden - Free Password Manager
  • Copyfish
  • Dark Reader
  • Dictionary Anywhere
  • Enhancer for YouTube
  • ExpressVPN: VPN proxy for a better internet
  • Free Download Manager
  • Imagus
  • IP Address and Domain Information
  • IPvFoo

All those extensions are now disabled... And the issue still occurs on every single Firefox start.

My history is cleaned each time Firefox exits. Actually I have set up Firefox to clean everything (history, cookies, passwords...) when it exits.

I have not changed my Firefox settings for a few months. This issue came yesterday out of the blue.

Pomohla vám táto odpoveď?

more options

Have you been emailed any files recently that you have saved to your computer?

I am thinking it might not be something in Firefox, but malware on your computer that is "calling out" through the browser.

Pomohla vám táto odpoveď?

more options

No. I am very careful about email attached files (and, more generally, about all what is security-related).

Kaspersky Internet Security is always watching my system (emails, browsing, files, OS, network connections, apps...).

During a few minutes I thought I had found the culprit: I use, as a home page, the default Firefox Home with 8 shortcuts in a row. Among those shortcuts, three point to torrent websites. I removed all of them (leaving only the non-suspicious ones) and the issue disappeared.

So I tried to add them, one by one, to get the issue back. Nothing. Firefox now starts without triggering Kaspersky Internet Security... It is nonsense.

I do not know what to say. Now that I am unable to reproduce the problem, the investigation seems to be temporarily dead (until the issue re-appears).

Thanks guys for your help!

Pomohla vám táto odpoveď?

more options

No problem, glad to hear it has been resolved.

Pomohla vám táto odpoveď?

more options

Vybrané riešenie

Well... I am not sure it has been resolved but the issue is gone for now. I will mark this problem as "solved" anyway (maybe it is possible to reopen it if it comes back?)

Happy Christmas Eve guys!

Pomohla vám táto odpoveď?

Položiť otázku

Ak chcete pridať odpoveď, musíte sa prihlásiť k svojmu účtu. Ak účet doteraz nemáte, položte novú otázku.