Created attachment 8596344 [details] screenshot This was caused by https://hg.mozilla.org/mozilla-central/rev/17aad8f83237 And fixed by backed out https://hg.mozilla.org/mozilla-central/rev/570bb53a3e7b Steps to Reproduce: 1. Install https://github.com/gorhill/uBlock/releases/download/0.9.4.6-dev.1/uBlock0.firefox.xpi 2. Turn on "I am an advanced user (Required reading)" from option ( chrome://ublock0/content/dashboard.html ) 3. Open Youtube Video (e.g. https://www.youtube.com/watch?v=55s3T7VRQSc ) 4. Click uBlock0 toolbar button Actual Results: 1 columun is missing Expected Results: 3 columns should display
Regression window if forced to enable APZ (layers.async-pan-zoom.enabled = true): https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=24fe1880f83b&tochange=d3b41b0ead7d Triggered by: d3b41b0ead7d David Anderson — Remove apz.subframe.enabled and assume it is always true. (bug 1128761, r=kats)
Something to check: does this still happen if layers.async-pan-zoom.enabled is false but layout.event-regions.enabled is true?
(In reply to Kartikaya Gupta (email:firstname.lastname@example.org) from comment #2) > Something to check: does this still happen if layers.async-pan-zoom.enabled > is false but layout.event-regions.enabled is true? setting layers.async-pan-zoom.enabled = false layout.event-regions.enabled = true (default) in Nightly40.0a1(2015-04-22 946ac85af8f4) and restart, then the problem is gone.
Problem no longer reproducible with 20150426 nightly. Fixed ?
yes, it was fixed by backed out (https://hg.mozilla.org/mozilla-central/rev/570bb53a3e7b)
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WORKSFORME
Reopening because we'll need to fix this at some point, apz will be on by default soon.
Status: RESOLVED → REOPENED
Resolution: WORKSFORME → ---
I can reproduce this on Linux using the latest uBlock add-on from github and the rest of the STR in comment 0. Looks like the clip isn't properly accounting for the scrollbar on the left, although I haven't looked at a layer dump to verify that yet.
Forward-duping since the newer bug has a simple test case attached.
Status: REOPENED → RESOLVED
Last Resolved: 3 years ago → 3 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1194851
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