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Unable to launch browser: "Unable to attach to browser" #2249

@marlberm2014

Description

@marlberm2014

Type: Bug

  1. Open VS code in windows
  2. Go to run and debug (ctrl + shift + alt + f5)
  3. Run any configuration type chrome, request launch
  4. Error is shown: Unable to launch browser: "Unable to attach to browser"

I'll attach the log files upon request

Note: A month ago, the same config will launch without problem.

Extension version: 2025.7.1117
VS Code version: Code - Insiders 1.103.0-insider (cd20192782347e3afdbabc65ddaab56acd56da58, 2025-07-14T04:17:08.264Z)
OS version: Windows_NT x64 10.0.26100
Modes:

System Info
Item Value
CPUs Intel(R) Core(TM) i7-10870H CPU @ 2.20GHz (16 x 2208)
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) 31.84GB (9.30GB free)
Process Argv --crash-reporter-id 9149b6ee-57b9-4371-a736-e516733f3a40
Screen Reader no
VM 0%
A/B Experiments
vsliv368:30146709
pythonvspyt551cf:31249598
h48ei257:31000450
nativeloc1:31118317
dwcopilot:31158714
c3hdf307:31184662
6074i472:31201624
dwoutputs:31242946
hdaa2157:31222309
copilot_t_ci:31333650
g012b348:31231168
pythoneinst12:31251391
c7cif404:31309980
pythonpulldiag:31287486
6gi0g917:31259950
996jf627:31264550
pythonrdcb7:31268811
usemplatestapi:31297334
jdghv92:31317040
jjjhb125:31275147
pythonpcpt1:31345880
6518g693:31302842
generatesymbolt:31280541
convertfstringf:31280702
9d2cg352:31346308
b99bg931:31349649
usemarketplace:31343026
0g1h6703:31329154
4f60g487:31327383
nes-emitfast-1:31333560
66g5g415:31348965
onetestforazureexp:31335613
6abeh943:31336334
envsactivate1:31349248
0927b901:31340060
editstats-enabled:31346256

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