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What exe is v68 trying to download under the hood?

  • 6 ответов
  • 1 имеет эту проблему
  • 27 просмотров
  • Последний ответ от Ask Mozilla

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After updating to v68, Firefox is stuck on a new tab and not doing anything. Its not possible to open any website. Its not possible to open a new tab (Have tried refresh,uninstall,etc). Upon investigating I found that we have a policy in Symantec Endpoint Protection that disables all exe downloads from all browsers. If I turn that policy off, Firefox works fine. But we can't do that for security reasons. So my question is what has changed in v68 (v67 works fine) that is trying to download an exe under the hood? We have no plugins, extensions, themes, addons installed whatsoever.

I put a streamable link to help identify the problem properly.


https://streamable.com/uodzj

Все ответы (6)

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By any chance, does the Symantec software log the blocked file name(s), or when the policy is relaxed, does it log what was retrieved?

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What is the new tab URL ?

  • Options/Preferences -> Home
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jscher2000 said

By any chance, does the Symantec software log the blocked file name(s), or when the policy is relaxed, does it log what was retrieved?

Sadly no. I could not find any logs related to this policy.

EDIT: Was able to dig through the log. This is the MD5 of the file d087c71a5431983cdbe36abfd4a3ce55

This is the full log:

  • 2019-07-15 11:55
  • Block
  • Production
  • - Caller MD5=d087c71a5431983cdbe36abfd4a3ce55
  • File Read
  • block executables | File and Folder Access Attempts
  • local IP
  • 26992
  • C:\Program Files\Mozilla Firefox\firefox.exe
  • Disk Info
  • C:\Program Files\Mozilla Firefox\firefox.exe
  • 582,688 Bytes
  • username
  • domain name
  • Default

Изменено Ask Mozilla

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cor-el said

What is the new tab URL ?
  • Options/Preferences -> Home

I can't even go to Options. I click on it and nothing happens. I have tried with clean installs multiple times but its the same problem reoccurring. The new tab url was usually blank for us before the update.

Изменено Ask Mozilla

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hi, firefox is a multi-process application - maybe your security software is blocking different running firefox.exe processes from communicating with each other?

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philipp said

hi, firefox is a multi-process application - maybe your security software is blocking different running firefox.exe processes from communicating with each other?

Hi, that's definitely possible, yes. How would I know though? I am in touch with Symantec as well to see if they can help me with this.