Hi guys, i would like to share my experience too.
I’m on Firefox Nightly 59 at work and as other people have pointed out, devtools performance are really bad especially on heavy pages.
I found these issues:
- Opening devtools and switching to “Debugger” tab, often cause the latter to stay completely blank until you switch to another tab and then switch back. More generally, the first time you select some devtools tab they are unresponsive for a few seconds.
- Reload heavy javascript page with devtools opened, dramatically slows down page loading and cause the whole tab to be sluggish and unresponsive. I face this issue very often working on an Angular project and reloading the page to analize the console output. This is really frustating especially when you have to repeat this operation several times.
- Sometimes devtools won’t open after they were closed. You have to close the affected tab and you have to open another one. I encounter this problem several times a day. Unfortunately, i’m not able to reproduce it.
Anyway, i know that some bugs related to devtools performance and some of the issues i reported have been already filed so i hope they will be fixed as soon as possible, and as Firefox 57 was a great release we have to be competitive on devtools(and devtools performance) too.
If you need some additional info, just ask