According to StatCounter, a Web traffic analytic s provider, last month Yahoo gained the largest share it has had for the last five years!

From November to December, Yahoo’s United States market share rose from 8.6 percent to 10.4 percent. This increase in traffic appears to have been taken from Google, as Google’s market share decreased from 77.3 percent to 75.2 percent, the lowest it has ever been as recorded by StatCounter.

Bing’s market share has also appeared to have seen an improvement during 2014, increasing from 12.1 to 12.5 percent. Not as impressive as Yahoo’s improvement, but still a step in the right direction.

So why the improvement?

Improvement in the market share of Yahoo has likely come as a direct result of striking up a deal with Mozilla. For a decade Google enjoyed being the default search engine which appeared on the Mozilla Firefox browser, but now Yahoo has taken that spot. Possibly as a consequence of Google continually trying to promote its own browser, Chrome, Mozilla opted to set up a five year partnership with Yahoo.

Is this going to be a permanent step in the right direction for Yahoo?

Whether or not Yahoo continues to reap the benefits of its relationship with Mozilla will depend on whether users switch their default browser home page back over to Google; or instead warm to the Yahoo search engine, and continue to use it for their daily searches.