[Solved] Unsaved Changes dialog when closing Fiddler Anywhere after opening a HAR file and changing column layout

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Fiddler Everywhere Windows
Greg
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Greg asked on 29 Sep 2026, 12:13 PM

Columns I find useful like the timestamp and duration are missing from the default, so I have to add them when I open a HAR. Since version 8.0.0 I have started to get a dialog box when I try to close Fiddler Anywhere:

Title: You have unsaved Changes!
Are you sure you want to quit?
You have unsaved changes that will be lost in Filters.

I have not added filters to this HAR file, and I have closed all other HAR files and all other saved sessions.

I never actually want to save anything related to the files I open. I don't care if any filters I've added are unsaved, I don't want to be prompted. I just want the program to close when I click the close button.

Is there any way to disable this dialog?

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Nick Iliev
Telerik team
answered on 29 Sep 2026, 12:34 PM

Hey Greg,

 

I recently responded to the private support thread with ID 1719269 regarding the same inquiry, but for visibility, I will also repost my findings here.

We confirmed the issue as a legitimate bug in versions 8.0.1 and 8.1.0 that caused the mentioned dialog window to appear on app close. The team addressed the issue, which should now be fully resolved with the recently published version 8.2.0. Please update your Fiddler Everywhere to the latest version (8.2.0) to fully resolve the problem.

 

Regards,
Nick Iliev
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Fiddler Everywhere Windows
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Greg
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Nick Iliev
Telerik team
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