@Andrew79,
I’m not able to reproduce this issue on my end. Removing a top-site by clicking the x as you described works as intended on Windows 10 (version 1.10.97).
Can you try disabling the extensions you have installed in the browser (temporarily) and check to see if you get the same behavior with no extensions enabled??
@Andrew79,
Thank you for testing. Can you actually try creating a new profile (Menu --> Create new profile – note that this won’t erase or overwrite your existing profile), browsing for a couple minutes (just long enough to get a couple of top-sites to appear on the NTP) and seeing if you get the same behavior when trying to remove a top-site in the new profile?
@Andrew79,
Sorry for the late reply – I would delete browser history. It’ll be less work than re-configuring a new profile and I think that clearing your browsing data should do the trick.
I’m still not entirely sure what was causing that behavior but I do appreciate your patience and willingness to work with us.