SPDY has been enabled by default in Chrome for a while.
SPDY is enabled by default in Firefox 13, currently on the nightly channel. In Firefox 11 (beta channel) or 12 (aurora channel) [2] it can be enabled with a hidden preference [3].
After Firefox 13 is released in a few months, over 40% of web users worldwide will be browsing with SPDY. (Today the number is already over 25% worldwide thanks to Chrome alone, based on numbers from StatCounter.)
SPDY is enabled by default in Firefox 13, currently on the nightly channel. In Firefox 11 (beta channel) or 12 (aurora channel) [2] it can be enabled with a hidden preference [3].
After Firefox 13 is released in a few months, over 40% of web users worldwide will be browsing with SPDY. (Today the number is already over 25% worldwide thanks to Chrome alone, based on numbers from StatCounter.)
[1] http://nightly.mozilla.org/
[2] http://www.firefox.com/channel
[3] https://hacks.mozilla.org/2012/02/spdy-brings-responsive-and...