When there's not enough space to display all filtering options on "Special:Contributions" in a single line, an annoying horizontal scrollbar is created.
Instead, it would be better if there was a line-wrap so that all filtering options can be displayed without using a horizontal scrollbar. Like the filtering options on "Special:RecentChanges" and "Special:Watchlist" use a line-wrap rather than a horizontal scrollbar.
I have shot a video that illustrates the problem in the current situation:
P.S.: Sorry in advance if I didn't choose the right tags for this task. I'm not experienced in phabricator...