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Dropping of support by Mozilla for pre SSE2 processors

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hake
hake
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I have received a reply by philipp (timed May 14, 2016, 7:14:36 PM) to an earlier and similar question.

He tells me that Firefox will no longer support pre SSE2 processors starting with version 49. This must obviously also apply to Firefox ESR and Thunderbird. It would be very helpful to know from which versions of Firefox ESR and Thunderbird support ends for pre SSE2 processors.

Do Mozilla products check processor compatibility before attempting to install updated versions and is installation aborted if incompatibility is discovered?

It would be good for this to be announced on the Mozilla web site.

Thank you, Chris Pugson

I have received a reply by philipp (timed May 14, 2016, 7:14:36 PM) to an earlier and similar question. He tells me that Firefox will no longer support pre SSE2 processors starting with version 49. This must obviously also apply to Firefox ESR and Thunderbird. It would be very helpful to know from which versions of Firefox ESR and Thunderbird support ends for pre SSE2 processors. Do Mozilla products check processor compatibility before attempting to install updated versions and is installation aborted if incompatibility is discovered? It would be good for this to be announced on the Mozilla web site. Thank you, Chris Pugson

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philipp
philipp
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hi chris, i just wanted to give you advanced warning about it - the plans are not fully sketched out at the moment to my knowledge, so i cannot give you an answer in regards to behaviour on esr yet but i would assume that non-sse2 systems are continued to be supported for this (45) cycle. and yes, the installer/updater would refuse to install on incompatible systems.

more information about this is available in bug 1271755 and depending entries.

James
James
  • Top 25 Contributor
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The ESR is based on a Release every seven versions so 45 ESR is not affected by this however Firefox 52.0 ESR will be.

Firefox 45.8.0 ESR will be out when Firefox 53.0 is Released as ESR version gets eight updates unless Mozilla extends it.