How can I turn off cache in Firefox only when developer tools are opened?

Question

I know that I can turn off the cache in Firefox going to about:config and setting network.http.use-cache and browser.cache.offline.enable to false.

But this is annoying when I want to turn off the cache temporary. I really like the feature of turning off cache only when dev tools are opened.

Is there any solution for Firefox?

I would prefer not to install add-ons if possible.

For future reference, Firefox Quantum renamed this to "Disable HTTP Cache (when toolbox is open)" under Advanced Options. — intrepid_em, Nov 17 '17 at 17:43

score 28 · Accepted Answer · edited Jun 20 '20 at 09:12

28

Firefox supports this feature, now:

Firefox 32.0.3

To open the developer tools in Firefox, press F12 or Right click and select Inspect Element (Q).

edited Jun 20 '20 at 09:12

Community

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answered Oct 12 '14 at 15:47

Ionică Bizău

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How do you open this windows? – Thomas Jun 01 '15 at 11:30
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Ha yes, if you click on **Toolbox option**, I see. Thank you. – Thomas Jun 01 '15 at 16:23
Option missing from FF 50.0 OSX :( – atoms Nov 28 '16 at 15:11
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F12 then F1 or in dev tools click `...` then `settings` – jmunsch Nov 09 '18 at 00:28

Ciro Santilli OurBigBook.com · Answer 2 · 2020-01-09T10:40:04.093

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Firefox 71:

option now named "Disable HTTP Cache (when toolbox is open)"
the little cog settings menu is now hidden under the three dots on upper right:

Firefox 48:

edited Jan 09 '20 at 10:40

answered Oct 05 '16 at 08:42

Ciro Santilli OurBigBook.com

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This option does not seem to exist anymore? – Douglas Gaskell May 25 '17 at 03:30
@DouglasGaskell still have it on current latest Firefox 53.0.3, Windows, just it says "disable HTTP cache", which should be the same thing? Did you scroll down a bit? – Ciro Santilli OurBigBook.com May 25 '17 at 04:59
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On Firefox 71.0, and it says "disable HTTP cache (when toolbox is open)" under Advanced Settings. – Daniel Kim Jan 06 '20 at 17:05
This doesn't appear to be working for me on Ubuntu. I still have to do a `ctrl+shift+r`. – Zamicol Aug 01 '23 at 18:11

How can I turn off cache in Firefox only when developer tools are opened?

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