Open Bug 1465774 Opened 5 years ago Updated 1 year ago

[Ubuntu] Distorted content while scrolling inside a Pdf file in Print Preview (Landscape mode only)


(Core :: Print Preview, defect, P4)




Tracking Status
firefox-esr52 --- unaffected
firefox-esr60 --- fix-optional
firefox60 --- wontfix
firefox61 --- wontfix
firefox62 --- fix-optional


(Reporter: asoncutean, Unassigned)


(Keywords: regression)

[Affected versions]: 
- 60.0.1 (20180516032328)
- 61.0b10 (20180530184300)
- 62.0a1 (2018-05-30)

[Affected platforms]:
- Ubuntu 16.04 x64
- Ubuntu 14.04 x32

[Steps to reproduce]:
1. Launch Firefox
2. Open a .pdf file inside the browser
3. Go to Print Preview (File - Print Preview or Menu - Print)
4. Change the orientation mode to Landscape
5. Scroll down the page and observe the behavior

[Expected result]:
- The scrolling is smooth, there are no rendering issues.

[Actual result]:
- The content slides along with the scroll and part of it disappears in this process(

[Regression range]:
- I manage to reduce the regression range to the followings:
  Last good revision: c750a7de1194d71f2d2ef73f6a919d26b9640cae (2016-12-15)
  First bad revision: 63b447888a6469b9f6ae8f76ac5f0d7c6ea239da (2016-12-16)

[Additional Notes]:
- This issue is not reproducible in Portrait mode.
- This exactly behavior is not triggered on OS X and Windows platforms, but when in Landscape mode the bottom of the page is cut off (see bug 1430114).
- This behaviour can be observed, only when the scale is set to 100% or to “Shrink to Fit”.
Here is the pdf sample that I use to reproduce this bug:,  plus a correction for the flag settings.
Priority: -- → P4
Severity: normal → S3
You need to log in before you can comment on or make changes to this bug.