I added some breakpoints in Firefox debugger and when I removed them, they just disappear in the Breakpoints list.Then, when I load the page, it still pauses at the breakpoints.
If I close the Developer Tools window and open it again, the breakpoints I removed will come back again. In that case, I cannot debug this page for its annoying pauses.
This issue occurred when Firebug still existed years ago. Is there any way to clean the breakpoints or reset the debugger?