评分3星,满分5星

good... just good... :D

评分3星,满分5星

trying it now.

评分1星,满分5星

can't get rid of it

https://support.mozilla.org/en-US/kb/add-or-remove-search-engine-firefox#w_remove-search-engines
Learn to use Firefox. thank you,

评分5星,满分5星

It is it and working!