Public bug reported: == The issue == Search and text selection highlighting visuals get mismatched with the actual selection in view-source when the value of `layout.css.devPixelsPerPx` is 1.2 or larger.
== Steps to reproduce == * Open `about:config`, find `layout.css.devPixelsPerPx` and change the value from default (-1.0) to 1.2. * Open a view-source view with long lines: `view-source:https://www.youtube.com/user/10asti10` * hit Ctrl+f, search for rss * using the LMB, try selecting some text, then copy and paste it somewhere == What happens == Screenshot 1: the highlighted text on the page is not ”rss”. The highlight doesn’t even adhere to letter widths. Screenshot 2: the pasted text is not even close to what you’ve selected to copy. == What I expect to happen == For the search to hightlight an occurence of ”rss”, and for the pasted text to correspond to what I’ve selected from the view-source view. == Other info == * In my testing, a devPixelsPerPx value of 1.1 seems to not trigger this, whereas 1.2 and anything above does. * In addition to 18.04 (whence the attached info is from) I’ve reproduced this in a VM running up-to-date 18.10. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: firefox 62.0.3+build1-0ubuntu0.18.04.1 ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18 Uname: Linux 4.15.0-36-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 BuildID: 20181002130007 CurrentDesktop: ubuntu:GNOME Date: Tue Oct 16 16:59:28 2018 InstallationDate: Installed on 2016-10-13 (733 days ago) InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fi_FI.UTF-8 SHELL=/bin/bash SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: firefox (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic ** Attachment added: "highlighted text on the page is not ”rss”" https://bugs.launchpad.net/bugs/1798103/+attachment/5201764/+files/screenshot-1.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798103 Title: Text highlight mismatch in view-source when layout.css.devPixelsPerPx is >= 1.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1798103/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
