Can not import bookmarks in to Brave from Firefox browser if the browser is open

[MadhaviSeelam]

Description

If Firefox browser is open, it's preventing to import bookmarks into Brave. However, able to import from Microsoft Edge and Chrome when these two browsers are open

Steps to Reproduce

1. leave Firefox, chrome and Edge browsers open
2. install 1.43.55
3. launch Brave
4. click Import bookmarks now...
5. select Mozilla Firefox -default release
6. click Import button

Actual result:

Close Firefox... message displayed.
clicked somewhere else on the screen.
Error modal dismissed and spinner spins and can not cancel

2022-08-03_17h27_00.mp4

Expected result:

Should be able to import bookmarks from opened browsers similar to Edge and Chrome

Reproduces how often:

Easily

Brave version (brave://version info)

Brave	1.43.55 Chromium: 104.0.5112.81 (Official Build) beta (64-bit)
Revision	5b7b76419d50f583022568b6764b630f6ddc9208-refs/branch-heads/5112@{#1309}
OS	Windows 11 Version 21H2 (Build 22000.795)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Miscellaneous Information:

@rebron

[rebron]

cc: @spylogsster

[dthisner]

Would love to see this fixed :)

[Titule1]

Same problem, even on a freshly booted system that hasn't run Firefox since startup.
Effect: I cannot migrate from firefox