How to capture traffic from a specific tab on firefox

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Fiddler Classic Windows
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Kyle
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Kyle asked on 03 Feb 2025, 09:25 AM
I'm trying to capture traffic/ requests from a specific website, but I don't know how. I've tried endless Google searches, and the documentation on Fiddler did mention filters . However, I'm worried that if I set a filter to show only if the URL contains, for example, bluestorm.com , the session list won't display anything if the request URLs when browsing that website do not include " bluestorm." Similarly, if I use Facebook, I feel it will only list URLs that contain the word "Facebook."

What
I want is to input the exact URL, for instance, Facebook, so that now the session list will show all the URL requests or traffic that occur while the Facebook tab is currently open . Right now, I'm only getting traffic from my Firefox browser, but I want the traffic from a specific tab within Firefox, and I want all the URL traffic that occurs in that tab.

For
example, if I want to capture the traffic from Facebook, I don't want to filter and have it display only URLs related to Facebook because I feel that will just show traffic for URLs like facebook.com . There are other URLs on Facebook that don't contain the word "Facebook" at all. So, I want it to retrieve and capture all the traffic from the Facebook tab.




I filtered to show only if the URL contains, as you can see in the image, but no URLs from Facebook are being listed when I refresh the tab that's currently on the Facebook URL.

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Nick Iliev
Telerik team
answered on 03 Feb 2025, 10:54 AM

Hey Kyle,

 

Fiddler cannot differentiate between browser tabs because the Process ID identifies the entire browser process rather than a specific tab. However, you can still distinguish between requests by examining the available data in the HTTP requests. For instance, by using FiddlerScript, you can combine multiple conditions, such as checking the URL and data from HTTP headers, cookies, etc.

Regarding the screenshot filter - remove the protocol part (https://) and use only a partial (for example, use "facebook.com") and you should get a hit. Note that you can also use regular expressions to create more complex filter.

 

 

 

Regards,
Nick Iliev
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Kyle
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commented on 04 Feb 2025, 02:23 AM



I did like you suggested and refreshed my facebook and still not traffic of facebook is being captured
Nick Iliev
Telerik team
commented on 04 Feb 2025, 06:02 AM

Hey Kyle,

 

I've just provided some additional suggestions in the duplicate thread that you have posted:

https://www.telerik.com/forums/how-to-capture-traffic-on-facebook-without-having-it-be-the-only-tab-of-my-firefox-window 

We are closing this one as we should discuss the case in a single thread instead of having multiple identical posts.

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Fiddler Classic Windows
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Nick Iliev
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