1741384 - Screenshotting ::1 errors with "Not a URL"

Status: RESOLVED DUPLICATE of bug 1541465

(Firefox :: Screenshots, defect)

Description

[Valentin Lorentz]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0

Steps to reproduce:

1. start a HTTP server on localhost listening on IPv6 and port 8000 (any other port should work), eg with python3 -m http.server --bind ::1
2. open http://[::1]:8000/ in Firefox
3. Right click, then "Take a screenshot"

Actual results:

Error:

Whoa! Firefox Screenshots went haywi...
We're not sure what just happened. Care to try again or take a shot of a different page?
Error: Not a URL

Expected results:

Should take a screenshot

Comment 1

[Negritas Sergiu, Desktop QA]

Hello! I have managed to reproduce the issue with firefox 96.0a1(2021-11-17), 95.0b7, 94.0.1 on Ubuntu 20.

Setting a component and marking this issue as new in order for our developers to take a look into this. If it's not the right component please feel free to change it to an appropriate one.

Thank you!

Comment 2

[Sam Foster [:sfoster] (he/him)]

Thanks for filing this. I think this is the same issue as bug 1541465 - there's some URL checking which just doesnt anticipate "[:1]" as a valid hostname.