I really appreciate @firefox adding the ability to enable custom search engines for searching with the address bar. As someone who just types my searches direct to the address bar, not having the option to use my search engine of choice was a problem that’s now solved! #Firefox
They should remove the words “adding the”. So the sentence would be “I really appreciate Firefox ability to enable custom search”. The way they phrase it sounds like Firefox has recently added the custom search engine function.
Yeah it could have been phrased better. But, no harm done.