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1. Install "JavaScript Debugger" plugin. 2. Create a web application with JavaScript code. 3. Debug the application. 4. Set a breakpoint. 3. Open a FireBug window in a browser. Result: In "Breakpoints" tab of FireBug several identical breakpoints appear.
I do not see multiple Breakpoints. Can you please retry, attach the project and reopen the bug.
I can't reproduce this issue anymore. Probably it occurs only when machine is highly loaded or something like this. In this case, probably, something becomes wrong in userdir. I started IDE with fresh userdir and then wasn't able to reproduce it.
Fixed.
Verified with build 080429.