Unverified breakpoints after 2.12.1 release

[AnrDaemon]

Type: Bug

launch.json configuration:

{
            "log": {
                "fileLevel": {
                    "default": "Debug"
                },
                "fileName": "${workspaceFolder}/logs/ffdebug.log"
            },
            "name": "FFdebug",
            "pathMappings": [
                {
                    "path": "${workspaceFolder}/app/",
                    "url": "http://127.0.0.1:5500"
                },
                {
                    "path": "${workspaceFolder}/app/",
                    "url": "https://proto.example.com/"
                },
                {
                    "path": "${workspaceFolder}/app/",
                    "url": "https://stage.example.com/"
                }
            ],
            "preLaunchTask": "Firefox debugger",
            "request": "attach",
            "skipFiles": [
                "**/js.stripe.com/**/*",
                "**/static.sumsub.com/**/*",
                "**/node_modules/**/*",
                "**/*.min.js",
                "${workspaceFolder}/app/lib/tools.js"
            ],
            "host": "127.0.0.1",
            "type": "firefox"
        }

After upgrading to 2.12.1 release and restarting the debugger, I'm unable to verify any of the breakpoints. I have tried to restart both the IDE and the browser to get it to work, but then it would catch a breakpoint in the newly opened tab and don't show it in the IDE.
I have to close all tabs in the browser but one and restart the debugger to connect it again.

Extension version: 2.12.1
VS Code version: Code 1.96.2 (fabdb6a30b49f79a7aba0f2ad9df9b399473380f, 2024-12-19T10:22:47.216Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i3-8145U CPU @ 2.10GHz (4 x 2304)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	7.86GB (0.24GB free)
Process Argv	--folder-uri file:///d%3A/Profiles/anrdaemon/Documents/hk/invapi-php
Screen Reader	no
VM	0%

[hbenl]

This could be caused by a bug that I just fixed in version 2.13.0. Could you retry with that version?

[AnrDaemon]

Tested, not fixed. To shed a little more light (I don't think that's relevant, but just in case):
The application uses custom click handlers over internal protocol prefixes (like <a href="smth:ID"> … </a> will open the entity smth with specified ID, the ctrl/middle click will window.open() a specific URL with GET params (like, http://example.com/?entity=smth&id=ID). There's the problem starts.
The log shows that breakpoints are recognized, the browser will correctly stop at the breakpoints, but IDE will not show the interface, and it still shows the ghost tabs in threads list.

Restarting the debugger in the IDE may help to revive the system. Or not. Or in the last try it outright forgot that we're debugging and breakpoints ceased to work.

Had to reduce tabs to one and reload debugger again to make it behave.

[hbenl]

Which version of Firefox do you use? I've noticed a bug in the current Developer and Nightly editions that could cause this. If you've used one of those, try with the stable edition and tell me if that works better.

[AnrDaemon]

I'm using current stable releases.
Right now it's 134.0 (64-bit)

[hbenl]

OK, so this is a different issue. Could you share your logs/ffdebug.log?

[AnrDaemon]

I'll have to try and reproduce it with a safe data. Will take a day or two. Sorry for delays.