benchmark test for browsers also depends on the number of extensions installed?

Question

I did a test in chrome and firefox, chrome with no extension, firefox with a dozen. The test is form goolge (perhaps is optimized for chrome?), here and the result was:

Firefox: 118

Chrome: 2479

So I wonder: the benchmark is also influenced by the installed extensions or chrome is really so much higher than Firefox in performance?

Answer 1

Yes extensions affect performance... Especially in IE7/IE8.

As a general rule, use whatever extensions you want/need but consider that every one of them may affect your overall performance.

Some extensions however (e.g. Firebug) may slow down Firefox... but their assistance in developing web sites / applications far outweighs any performance hit.