Description of problem:
In 'Import Settings and Data From' dialog, if there is no import source, the
'Next' button is still enabled. Pls refer to attached screenshot for details.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Launch Firefox, click menu button 'File'-'Import'.
2.Check the prompted dialog.
If there is no import source, the 'Next' button is still enabled.
If there is no import source, the 'Next' button should be disabled.
Created attachment 132790 [details]
Import Wizard screenshot
The bug was still found in firefox-184.108.40.206-7.
Sounds like https://bugzilla.mozilla.org/show_bug.cgi?id=114075. Can you please
make sure they are the same, and if not, file upstream?