At least, according to this research. From calcudoku.org:
We analyzed usage data of the www.calcudoku.org number puzzle website for the years 2010 and 2011, consisting of over 1 million solved puzzles, attempting to determine the numerical intelligence of users of Internet Explorer (IE), Firefox, and Chrome (insufficient data was available for users of other browsers).
Based on the fact that Chrome users solve Calcudoku number puzzles the fastest, and that IE users give up on solving them the most, it appears that Chrome users have the highest numerical intelligence, followed by Firefox users, then by Internet Explorer users.
Okay, okay. They soft-pedal it a bit:
Note that it does not follow that using Chrome makes you smarter, for example ("correlation does not imply causation"). Also, we can only speculate about the causes of the differences: perhaps Chrome is the browser of choice for more technically inclined people, who tend to have better number skills. And maybe because IE is the default browser for Windows, people who do not choose a different browser possibly are less technically skilled.
And full disclosure: I use Chrome, but know for certain that I'd give up on a math puzzle in an instant. I'd even go so far as to predict that I'd give up on a math problem the moment I recognize it as a math problem.
Still: what browser do you use? And what does it say about you?