Copy Developer Tools settings to another profile
I have created a new Firefox profile. Now I want to copy my settings of the Developer Tools to this new profile. This should also include the custom device settings for the Responsive Design Mode. Is there a file (or files) in the profile-folder that contains these settings, and can I copy this file (or files) to the new profile? I found this link about copying profile files, but it doesn't mention devtools settings.
All Replies (2)
Such settings are stored in prefs.js. Best is not to copy this file to a new profile since it stores internally used meta data that is profile specific, but only copy user_pref() lines you need to prefs.js in the new profile with Firefox closed.
If you created custom devices, I think they were added to a storage database at:
[profile.folder]\storage\permanent\indexeddb+++fx-devtools
You could try migrating that folder to your new profile.
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