Can I prevent the Firefox developer tools network panel from clearing on page reload?

Question

I would like to observe the contents of a POST request whose successful completion results in a location.reload() - when I try to capture this request in the Network Panel of the Firefox developer tools, I find that the page reload clears the list of captured events. Can I prevent this clearing?

...or the other one, doesn't really matter. Accept you should, though. — zb226, Oct 06 '17 at 16:04

score 139 · Accepted Answer · edited Oct 19 '17 at 14:15

139

From Firefox 31 onwards you can use the "Enable persistent logs" setting to prevent the Network Monitor from clearing the list on reload.

edited Oct 19 '17 at 14:15

Sergey Vyacheslavovich Brunov

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answered Jun 24 '14 at 18:12

wbamberg

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And it's on central column on the top of the screen (for those who haven't an english version of the settings, in fr : "Préférence générales/activer les journaux persistants") – pdem May 02 '17 at 12:51
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I wonder how could they possibly do such a bad job cloning firebug. Which is all they really needed to do. Those guys must be blind or something. – Tomáš Zato May 27 '17 at 22:14

vossad01 · Answer 2 · 2017-02-16T16:22:40.843

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Despite knowing the name for the setting is "Enable persistent logs", it took me a while to find it on the settings page. I hope this helps:

edited Feb 16 '17 at 16:22

answered Jan 11 '17 at 14:39

vossad01

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score 48 · Answer 3 · answered Nov 18 '20 at 00:46

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Roughly three years after BeetleJuice's update, it seems to have moved again - now, you need to click the gear icon on the far right side for the option to appear. Hooray for our ever-changing user interface soup.

answered Nov 18 '20 at 00:46

zb226

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Hooray - that's the solution for Firefox 93 – bebbo Nov 13 '21 at 11:27

score 37 · Answer 4 · answered Jan 30 '18 at 15:20

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I couldn't find this setting in Firefox 57. The setting has been moved to the network tab itself, above the log table

answered Jan 30 '18 at 15:20

BeetleJuice

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Just in case anyone is wondering, this is how you do it in Chrome DevTools as well, the checkbox is along the top bar in the Network tab. – ahouse101 Sep 20 '18 at 18:48

score 8 · Answer 5 · answered Apr 18 '21 at 16:06

If "Enable persistent Log" settings is not available in the devtool settings, you can go to about:config(type this in the URL box and enter) page and search for persistlog and change it from there(toggle button on the right).

I can see two options and enabled both. :)

devtools.netmonitor.persistlog, devtools.webconsole.persistlog

Can I prevent the Firefox developer tools network panel from clearing on page reload?

5 Answers5

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