We currently use TwoWayView in various places across the app, a GridView in the TabsGridLayout class and various ListViews all over the place. We can simplify our code base considerably if we swap these all out for a RecyclerView [1]. RecyclerView is the next generation of ListView, using it will allow us to cut down on code clutter, create a unified way of displaying lists and benefit from a load optimisations and improvements. 1: https://developer.android.com/reference/android/support/v7/widget/RecyclerView.html

Could this be a good contributor/intern project?

On my machine, the compiled TwoWayView classes takes up 114K – we should prioritize removing these instances: https://mxr.mozilla.org/mozilla-central/search?string=extends+twowayview&find=mobile%2Fandroid&findi=&filter=^[^\0]*%24&hitlimit=&tree=mozilla-central For classes that extend TwoWayView (above), TabsListLayout is going to be removed soon but we can work on TabStripView.

We have completed our launch of our new Firefox on Android. The development of the new versions use GitHub for issue tracking. If the bug report still reproduces in a current version of [Firefox on Android nightly](https://play.google.com/store/apps/details?id=org.mozilla.fenix) an issue can be reported at the [Fenix GitHub project](https://github.com/mozilla-mobile/fenix/). If you want to discuss your report please use [Mozilla's chat](https://wiki.mozilla.org/Matrix#Connect_to_Matrix) server https://chat.mozilla.org and join the [#fenix](https://chat.mozilla.org/#/room/#fenix:mozilla.org) channel.