Testing with the 2016-04-14 Nightly on both desktop and mobile, trying to debug some JS code in Firefox for Android doesn't really seem to work: STR: - Connect to Firefox for Android, start debugging the main process and set a breakpoint somewhere, e.g. at the top of AddTab() in browser.js or somewhere in handleEvent() in sessionstore.js, e.g. on the call to this.onTabAdd(). - Trigger the breakpoint (by opening a new tab if you followed the above suggestions). - Try single-stepping. Expected: The debugger runs a single step as instructed. Actual: One or more out of: - Instead of single-stepping as expected, I suddenly end up in promise-backend.js (https://dxr.mozilla.org/mozilla-central/rev/21bf1af375c1fa8565ae3bb2e89bd1a0809363d4/toolkit/modules/Promise-backend.js#974) - Sometimes the debugger gets stuck, i.e. pressing any of the single-step/run/pause buttons doesn't have any effect any more. - The console fills with messages about 11:33:27.398 DebuggeeWouldRun: debuggee `resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:500' would run1TabSources.js:404:14 and 11:33:35.010 DebuggeeWouldRun: debuggee `resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:500' would run1TabSources.js:358:14
Thanks for the report! This should get fixed soon by the work in bug 1263629. It has already landed to fx-team, so we just need to wait for it to merge to mozilla-central too. You would then need to use a build of Firefox for Android that contains the changes.
I've rebuilt Firefox from mozilla-central after bug 1263629 has landed and debugging works again. Thanks very much.
Status: NEW → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1263629
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