Mozilla ends Firefox support for Mac OS Tiger
Calls Mac OS X 10.4 ‘hindrance’ to development; Apple's already dumped Tiger — Computerworld - Baring any last-minute change of mind, Mozilla will permanently drop support for Mac OS X 10.4 from future editions of Firefox.
Context & Ripple Effects
The Tiger cutoff lands mid-restructuring at Mozilla: weeks earlier it scrapped Firefox 3.7 and overhauled its development process, having already pushed back the Firefox 3.6 and 4.0 deadlines at the end of 2009. Framing OS X 10.4 as a 'hindrance' to development is the same logic applied to the release schedule — fewer supported permutations, faster cycles.
Mozilla is also following rather than leading: per the report, Apple itself has already ended support for Tiger, so Firefox is aligning its minimum platform with the OS vendor's own lifecycle rather than carrying users Apple has abandoned.
First-order effects
- Tiger holdouts face a fork: stay on an ever-older Firefox branch with no future security patches, or upgrade OS/hardware to keep current Firefox releases.
Second-order effects
- Every release Mozilla ships without Tiger code shrinks the maintenance surface for its engineers, freeing effort for the accelerated cadence the January process overhaul was designed to enable.
Third-order effects
- If browsers routinely set their floor at the OS vendor's own end-of-life line, legacy-platform support becomes a decision vendors make in concert rather than unilaterally — squeezing the long tail of users who skip paid OS upgrades.
The trend: Browser makers are tying their supported-platform floors to operating-system vendors' own retirement schedules, trading reach for release velocity.