Firefox 4, 5, 6 and 7 to be released before the end of 2011
Firefox's official roadmap has been updated, and boy are there some interesting changes afoot. Most notably, Firefox 7 will ship in 2011. The second biggy, and the main focus of Firefox development in 2011 …
Context & Ripple Effects
The roadmap reversal is stark: Mozilla spent late 2010 pushing Firefox 4 back, first delaying the release into 2011, then promising a February ship date in January. Now the updated official plan calls not for one careful launch but four numbered versions — 4, 5, 6, 7 — before December.
That means Mozilla is abandoning the multi-year major-release rhythm that defined Firefox's rise against Internet Explorer, when version numbers tracked years of work and the browser was framed as the frontrunner in the improvement race. The 2011 plan trades polish-per-release for shipping cadence.
First-order effects
- Users and enterprise IT teams who sat through the February Firefox 4 promise will face three more full version upgrades within months of finally deploying it.
Second-order effects
- Extension developers and corporate testers lose the long qualification windows between majors — every quarter brings a new compatibility target, raising maintenance cost for anyone who customized Firefox.
Third-order effects
- Version numbers stop signaling capability and become timestamps, shifting browser competition from feature-launch events to whoever sustains the fastest reliable delivery pipeline without breaking the ecosystem.
The trend: Browser development is consolidating around continuous rapid-release trains, where cadence itself becomes the competitive weapon.