1710341 - Full page screenshot feature with a Zoom-In page

Status: RESOLVED DUPLICATE of bug 1699410

(Firefox :: Screenshots, defect)

Description

[Steo]

Attachment: 2 Screenshots as described above.

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0

Steps to reproduce:

Open any webpage, especially website with medium complexity and elements present in it, however no matter what webpage is taken in consideration... Indeed it seems a general behavior and actually happens also here in bugzilla.mozilla.org

Try to take a Full Page Screenshot without any ZOOM on the webpage (CTRL+SHIFT+S or right click and select "Take Screenshot", then select on the right top corner "Save Full Page") , this will show the webpage screenshot perfectly.

Now try to apply some ZOOM-IN (example 150%) or try some ZOOM-OUT (example 70%) on the webpage and retake a Full Page Screenshot.

Actual results:

In particular the results a "Full Page Screenshot", with a Zoom-In (or Zoom-Out) applied, result in a partial page, sometimes it gets cut along the length and not along the height and sometimes it gets cut along the length and the height.

This is a link to a PNG image I have uploaded to show exactly the Full Page Screenshot behavior:

This is a Full Page Screenshot with NO ZOOM applied:
https://ibb.co/cTVFSR4
(you can see the full page entirely, top-to-bottom and side-to-side)

This is a Full Page Screenshot with ZOOM-IN applied (150x, or 4 times "CTRL + +"):
https://ibb.co/hFKy6mv
(you cannot see the full page entirely, top-to-bottom has been cut at the end/bottom and side-to-side has been cut on the right)

(Same example pictures has been uploaded as 1 single file ZIP containing 2 PNG files).

Expected results:

It should instead correctly show the full page screenshot with an applied zoom, WYSIWYG.

---

What I have try already to do:

1. Fresh new install of Firefox and new profile: this still produce same unwanted behavior
2. Different OS: produce same unwanted behavior
3. Tried on a different computer with an old version of Firefox (I believe it was the 86.0.1 not sure of this): it was working correctly, then I have updated Firefox to the last version and it started to behave and reproduce unwanted results.

Comment 1

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'Firefox::Screenshots' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[Hani Yacoub, Desktop QA]

Managed to reproduce this issue Windows 10 x64, macOS 10.15 and on Ubuntu 20.04.

Comment 3

[Emma Malysz]

Thanks for reporting!

This sounds like it's a dupe of Bug 1699410, which we just pushed a fix for. Going to close this out