Thanks for your reply Stéphane. Will mark as "Fix Released" as 11 people affected and comments stopped five years ago. This report and the duplicate suggest problem with Launchpad. All seems ok here with Ubuntu 18.04 and Firefox 61.
If anyone is still seeing a problem they should create a new bug report so that their own log files and version information are attached. ** Changed in: firefox (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1057769 Title: Firefox key up / down / page up / page down don't work in web page To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1057769/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs