There has been a development with the "Stylish" extension for Chrome.
You can read the announcement here:
An article here:
Gorhill's [author of uBlock Origin] investigation and comment here:
(Edit - For now, it seems mozilla will not allow the proposed version to be accepted at addons.mozilla.org)
TL;DR - New partnership with SimilarWeb means the add-on will start collecting user data.
There will be an option to opt-out in the updated settings panel.
An alternative add-on to consider: