OK, that doesn't seem to be enough to reliably reproduce this. Better steps: 0. nightly Jan. 15, clean profile, enable browser toolbox, open add-on manager, switch to 'appearance', enable dark compact theme 1. restart with the same profile, dismiss default browser prompt if it shows up. 2. open addons manager again (I used restore prev. session, probably doesn't matter) 3. open browser toolbox via cmd-opt-shift-i (or Windows/Linux equiv.). accept connection prompt. 4. switch to debugger, set breakpoint in AddonManager.jsm on the first line of getPrefferedIconURL (2360). 5. in the browser, switch away and back to the appearance tab 6. the breakpoint will hit. Add these 3 watches: aAddon.id aAddon.icons aAddon.iconURL 7. hit continue a few times ER: don't get stuck AR: at some point the debugger believes it's paused (continue button highlights, OS X icon overlay shows pause status, if you switch to another devtools tab the debugger tab highlights) but also that it's not (no current line highlight, continue/step buttons all do nothing when clicked, locals are not displayed and watches view displays nothing for any of the watches). The main browser does not respond to input. The only way to restore normalcy is quitting the browser devtools process. Full console output in the browser toolbox: DebuggeeWouldRun: debuggee `resource://gre/modules/commonjs/toolkit/loader.js:748' would run builtin-modules.js:152:11 DebuggeeWouldRun: debuggee `resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:736' would run script.js:350:5 DebuggeeWouldRun: debuggee `resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:736' would run script.js:350:5 DebuggeeWouldRun: debuggee `self-hosted:3162' would run object.js:1031:20
I wasn't able to reproduce this anymore but will continue tracking this here: https://github.com/devtools-html/debugger.html/issues/3406
This appears to be fixed now, tracking any other fallout issues from the GH issue.
Status: NEW → RESOLVED
Last Resolved: 9 months ago
Resolution: --- → FIXED
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