Firefox 27+: Are dev tools running in the background?
Actually, since version 27, seems like Firefox has its dev tools running in background. I'm surfing or debugging with Firefox and it runs as slow as if the dev tools were open. Google Chrome is blazing way faster when its dev tools are closed. Any hints on what to do or is this a proprietary thingy I have to live with? Thx for solutions.
Alla svar (1)
Dev tools don't have an impact on performance, there are likely other things that are causing Firefox to be sluggish. Have you tried Refresh Firefox - reset add-ons and settings?