Post by Lawrence Post by Richmond
On my system the latest versions of Firefox and Thunderbird won't run,
they just report "illegal instruction". Is there a package with the i586
version? I have downgraded to TB 52.9 because I happened to have a copy,
but I think there should be a package that works on AMD Athlon XP.
As far as I can tell, new,suppported versions of Firefox require a CPU
with the SSE2 instruction set.
52.9.0esr (which is now unsupported) is the "newest" version that will run
on CPU's without SSE2.
This makes sense. I found this blurb from the Mozillas:
If Firefox is already installed on your computer, you can
continue using it but you will not receive updates beyond
version 52. If you download Firefox version 53 or above and
try to run it, you will see the message in stderr, This
browser version requires a processor with the SSE2
instruction set extension. You may be able to obtain a
version that does not require SSE2 from your Linux
Like many programs, newer versions of Firefox require a
processor that supports Streaming SIMD Extensions 2 (SSE2)
for better performance. We recommend a computer with a
Pentium 4 or newer processor that supports SSE2 to use the
latest version of Firefox, which has more features,
stability and security.
Firefox Extended Support Release (ESR) will continue to
work with older processors but will not receive updates
beyond ESR version 52. Firefox ESR version 59, scheduled
for release in March 2018, will no longer be supported.