Template:Firefox contrib release compatibility

Operating system		Latest stable version	Support status
Solaris	11	Old version, still maintained: 128.11.0esr (x64, SPARC V9)	2011–
	10 and OpenSolaris	Old version, not maintained: 52.9.0esr (IA-32, x64, SPARC V9)	2005–2018
	8–9	Old version, not maintained: 2.0.0.20 (IA-32, SPARC V9)	2004–2008
AIX	7.1 and 7.2	Old version, not maintained: 3.6.25 (POWER)	N/A
HP-UX	11i v2–v3	Old version, not maintained: 3.5.9 (IA-64, PA-RISC)	N/A
FreeBSD (Tier 1)	13 and later	Latest version: 139.0.1 (x64, ARM64)	2021–
		Old version, still maintained: 128.11.0esr (x64, ARM64)
	12	Old version, not maintained: 121.0 (IA-32)	2018–2024
		Old version, not maintained: 115.6.0esr (IA-32)
OpenBSD -stable	7.7	Latest version: 139.0 (x64, ARM64, RISC-V)	2025–
		Old version, still maintained: 128.11.0esr (x64, ARM64, RISC-V)
	6.9	Old version, not maintained: 88.0.1 (IA-32)	2021
		Old version, not maintained: 78.14.0esr (IA-32)
	5.8	Old version, not maintained: 38.7.1esr (PPC)	2015–2016
	5.7	Old version, not maintained: 31.6.0esr (SPARC V9)	2015
MeeGo/Harmattan		Old version, not maintained: 15 (ARMv7)	2011–2012

Legend:

Old version, not maintained

Old version, still maintained

Latest version

Latest preview version

Future version