In my developer edition "Developer Console" is not opening.
When i click on developer console it open the new window but after that window will minimize and it become unresponsive, so browser gives the option to kill the pages.
It's happening with AP1 and AP2 instance.
It started happening after lightning release.
Thanks
Rishav
Best Answer
I had the very same problems on Sandboxes.
I have opened Salesforce ticket and they referred me again to this SSE post. And also to a similar SSE post.
Jermaine's answer to that post helped for me.
If I copy the URL for the developer console into a new window, it opened in the new window without issue. After that I was able to open it directly as popup window from Salesforce.
Later Salesforce support shared this knowledge article with me. I believe this should always help.
Knowledge Article Number: 000205278 Description: When I'm trying to open the Developer Console it freezes the browser and, depending on the browser, we can see the following error:
"A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue."
Resolution: The solution would be to reset the IDEWorkspace for the affected user. To do this, please:
After following these steps the Menus should be available again and the error message should no longer appear.