Affected versions

• 67.0a1
• 66.0b9
• 65.0 RC

Affected platforms

• Windows 7x65
• Windows 10x64
• MacOS 10.13
• Ubuntu 18.4 x64

Steps to reproduce

1. Launch Firefox with a new profile
2. Go to about:profiles page
3. Select the profile to rename
4. Click on the "Rename" button
5. Delete the profile name
6. Hit the Ok button

Expected result

• It should not be possible to rename a Firefox profile with an empty string

Actual result

• Empty name profiles are possible when using rename option

Regression range
Will find regression asap.

Additional notes

• Renaming profiles with an empty name are possible from Profile Manager also.

I've reproduced the issue using a Nightly build from 2008. The issue is not a regression most likely.

Hi,

I was able to reproduce this issue on Windows 10 using Firefox version 74.0a1 (2020-02-03) (64-bit). Marking that flag as affected.

Hi,

I was able to reproduce this issue on Mac OS 10.14 for Firefox Nightly version 75.0a1 (2020-02-18) (64-bit). Marking that flag as affected.

Hi,

I was able to reproduce this issue on Ubuntu 18 with Firefox version Nightly 76.0a1 (2020-03-17) (64-bit). Marking that flag as affected.

Hi,

I was able to reproduce this issue on Ubuntu 18 with Firefox version 77.0a1 (2020-04-14) (64-bit). Marking that flag as affected.