Addon break close button behavior on wikipedia.org

krystian3w commented 4 years ago

Steps to reproduce

open https://en.wikipedia.org/wiki/Wikipedia;
scroll to 1 of 2 photos "Jimmy Wales and Larry Sanger" in History section.
open these photo by click;
close gallery with mouse by click in right close "✖️" button;

--- The site suddenly returns to the beginning. Turning off the add-on helps instantly and there is no scrolling to the beginning of the page. Also html anchors don't help, something overwrites the positions in this case.

Environment

Temporary Containers Version: 1.9b2
Firefox Version: 79
System: Windows 10 pro 20H1 (may 2020 / 2004)

Actual behavior

When you click on the closing button with the mouse **the page suddenly "scroll" to the top**. A workaround can be the use of the physical ESC key or the combination TAB + Space bar.

Expected behavior

An add-on should not interfere with the gallery code when you click on the gallery close "✖️" button. There shouldn't be any jumping of the website to the top.

Notes

The problem appeared somewhere with Firefox 70+ (in 68/69 it still worked OK). It's possible that it's a bug in Firefox code requiring additional notification on the `bugzilla` or finding it in the exist thicket of tickets. In addition, even using the oldest version of Addon `v0.91` seems to confirm this.

stoically commented 4 years ago

Huh, now that's a really interesting bug. And it seems to actually be triggered by TC. I wonder how this is even possible. I guess it must have something to do with the content script, though, I don't see how that could trigger such behavior, since it doesn't call preventDefault() or similar.

krystian3w commented 2 years ago

Maybe no longer glitched in Firefox 94.0.1 or Fixed inside addon 1.9.0 stable and newer.

stoically / temporary-containers