I dont know the correct terminology 1. Use nightly 2. Press ctrl+shift+1 to begin a capture 2. Do the stuff you want to profile 3. Press ctrl+shift+2 4. A new tab will open with the URL https://profiler.firefox.com/from-addon/ And thats it. The page never proceeds further than this. If I try to close nightly at this stage, nightly process keeps on running. I am unable to capture profiles until i restart nightly. This is an intermittent bug.
Bug 1677421 Comment 0 Edit History
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I dont know the correct terminology 1. Use nightly 2. Press ctrl+shift+1 to begin a capture 2. Do the stuff you want to profile 3. Press ctrl+shift+2 4. A new tab will open with the URL https://profiler.firefox.com/from-addon/ And thats it. The page never proceeds further than this. In a bug-free mode, the URL "callstack v5" would be appended to the URL, and then the usual processing would take place. If I try to close nightly at this stage, nightly process keeps on running. I am unable to capture profiles until i restart nightly. This is an intermittent bug.