Search Engine Land reported on Google begging Firefox users to switch their default search engine.

Why would Google give up the top two-plus inches of its search results page like this? It goes back to the November announcement that Mozilla was dropping Google in favor of Yahoo as the default search engine in its Firefox web browser. Even as the No. 3 browser with about 16 percent market share (according to StatCounter), Firefox still drives a substantial number of searches.

Since the deal was announced, Yahoo’s search share rose from 8.6 percent in November (again, StatCounter estimates) to 10.9 percent in January. According to comScore, Yahoo’s market share in the US jumped from 10.2 percent in November to 11.8 percent in December. More recently, though, there are signs that Yahoo’s market share may have hit a ceiling, at least in terms of the immediate bump from its deal with Mozilla.