Yesterday I found that Firefox is force installing a Chinese Search Engine on all Firefox locales, even en-US. A search revealed that this is quite old, but since they are hiding it from about:addons most people didn't noticed! You can find it in about:support > Firefox Features! It's extremely unlikely that a non Chinese use a Chinese search engine, that government among with Russia are the leaders of censorship in the world! So their search engines are pretty useless for the rest of the world. I didn't like that Firefox removed Yahoo! from its search engines and after a while added B a i d u, they say these are not related. Firefox was my favorite browser for many years, until yesterday, their market share is near 10% now, and going down, shameful policies.