Question: What internet explorer has 1.67% as the opera, with 2012 Q1 as the period?
SQL: SELECT "Internet Explorer" FROM "2-1876262-6" WHERE "Opera" = '1.67%' AND "Period" = '2012 Q1';

Question: What safari has 2012 Q4 as the period?
SQL: SELECT "Safari" FROM "2-1876262-6" WHERE "Period" = '2012 Q4';

Question: What period has 53.52% as the internet explorer?
SQL: SELECT "Period" FROM "2-1876262-6" WHERE "Internet Explorer" = '53.52%';

Question: What is the other that has 20.80% as the firefox?
SQL: SELECT "Other" FROM "2-1876262-6" WHERE "Firefox" = '20.80%';

Question: What opera has 19.87% as the firefox?
SQL: SELECT "Opera" FROM "2-1876262-6" WHERE "Firefox" = '19.87%';