Author Topic: AvastUI.exe testing Firefox cache every day  (Read 760 times)

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Offline Lukas Mizoch

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AvastUI.exe testing Firefox cache every day
« on: May 17, 2024, 05:20:32 PM »
Hello, I noticed that every time I started my PC, there is huge activity on my disk. I used monitoring tool and found out, that it is avastui.exe causing this activity. It is scanning every item in Firefox cache, which contains thousands and thousands of files, even when Firefox is not running. Why is this happening? I did not set any test after start of computer.

Offline mchain

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Re: AvastUI.exe testing Firefox cache every day
« Reply #1 on: May 18, 2024, 06:08:14 AM »
Something you said:  "It is scanning every item in Firefox cache, which contains thousands and thousands of files, even when Firefox is not running."

Ever clear your Firefox cache?  If no, then 3 bars upper right>History>Clear recent history, as below.

Note you have options as to what to clear, and you do not have to select all options.  Clearing the cache is what you want, to start with.  If you have Active Logins running, untick that.
Windows 10 Home 64-bit 22H2 Microsoft Windows Defender - Windows 11 Home 23H2 - Windows 11 Pro 23H2 Avast Premier Security version 24.4.6112 (build 24.4.9067.762) UI version 1.0.803

Offline Lukas Mizoch

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Re: AvastUI.exe testing Firefox cache every day
« Reply #2 on: May 19, 2024, 05:56:53 PM »
That is not problem. Problem is that UI component of Avast (not antivirus service itself) is scanning some folder every day without user permission.

Offline mchain

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Re: AvastUI.exe testing Firefox cache every day
« Reply #3 on: May 20, 2024, 02:12:48 AM »
More details please.

What folder? 
Windows 10 Home 64-bit 22H2 Microsoft Windows Defender - Windows 11 Home 23H2 - Windows 11 Pro 23H2 Avast Premier Security version 24.4.6112 (build 24.4.9067.762) UI version 1.0.803

Offline DavidR

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Re: AvastUI.exe testing Firefox cache every day
« Reply #4 on: May 20, 2024, 02:28:26 AM »
That is not problem. Problem is that UI component of Avast (not antivirus service itself) is scanning some folder every day without user permission.

More details please.

What folder? 

e.g. how is this happening and how are you detection this as in.
Are you looking in logs or are you checking the Task Manager.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 24.5.6116 (build 24.5.9153.762) UI 1.0.808/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security