stepfahn said

I would like for the developers of Firefox to respect my settings. I have taken the time to set them and do not appreciate my default search engine changed by Mozilla when updates are automatically applied. Somewhere along the lines, Mozilla hopped in bed with Yahoo. I'm not in bed with Yahoo, please keep me out of the bedroom!!!!

Agree completely. Mozilla's reputation takes a hit from affiliation with Yahoo - this is one of the reasons I've stopped automatically accepting upgrades, no matter how many times a day mozilla pushes them at me with a pop-up message.

hello, this was a bug and is no intentional policy - please refer to this answer in another thread by a mozilla employee: https://support.mozilla.org/en-US/questions/1041571#answer-677594 sorry for the inconvenience, but firefox will respect your custom search provider during further updates! for details how to change your default search engine choice also see Search bar - add, change and manage search engines on Firefox