When adding a new filter list with a long URL, the overflow is not managed resulting in the following momentarily:
https://ibb.co/60gsmzH
After the filter list is loaded the layout issue is resolved.
Chrome: Version 69.0.3497.81
Adblock Plus: 3.4.3
Filter list addition results in layout issue
Re: Filter list addition results in layout issue
Thanks for reporting this issue. I've created issue ui#346 to take care of this. Please let me know if you think that what's shown in the screenshot under "Expected behavior" differs from what you'd expect.