This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Cannot upgrade Win XP Firefox 47 to 49?

  • 5 antwoorde
  • 4 hierdie probleem
  • 1 view
  • Laaste antwoord deur James

more options

On Windows XP, I've had Firefox installed in "C:\Program Files\Mozilla Firefox\"

The version of it was v43; today I tried running an upgrade, and it offered me an upgrade to Firefox 47. I upgraded to 47. and it seems to work fine.

However, I know that the latest version, as of today, is Firefox 49. So, I thought I would run the upgrade again, and at first, from Help/About Firefox I get this:

https://support.cdn.mozilla.net/media/uploads/images/2016-10-18-06-00-13-481501.png

Then, I click on "Check for updates", and I get the spinner, and ultimately it ends with:

https://support.cdn.mozilla.net/media/uploads/images/2016-10-18-06-01-21-b77136.png

... "Firefox is up to date" message. I have Pentium CPU @ 3 GHz with 1 GB RAM.

Would anyone know why doesn't this Firefox recognize that there is a newer version (49) already? Is support for XP deprecated after v. 47, or do I have problem with my hardware specs? If neither of these should be a problem, is there a way to somehow "force" an upgrade - without downloading the installer for v49 and running it so it overwrites v47?

On Windows XP, I've had Firefox installed in "C:\Program Files\Mozilla Firefox\" The version of it was v43; today I tried running an upgrade, and it offered me an upgrade to Firefox 47. I upgraded to 47. and it seems to work fine. However, I know that the latest version, as of today, is Firefox 49. So, I thought I would run the upgrade again, and at first, from Help/About Firefox I get this: https://support.cdn.mozilla.net/media/uploads/images/2016-10-18-06-00-13-481501.png Then, I click on "Check for updates", and I get the spinner, and ultimately it ends with: https://support.cdn.mozilla.net/media/uploads/images/2016-10-18-06-01-21-b77136.png ... "Firefox is up to date" message. I have Pentium CPU @ 3 GHz with 1 GB RAM. Would anyone know why doesn't this Firefox recognize that there is a newer version (49) already? Is support for XP deprecated after v. 47, or do I have problem with my hardware specs? If neither of these should be a problem, is there a way to somehow "force" an upgrade - without downloading the installer for v49 and running it so it overwrites v47?
Aangehegde skermkiekies

Gekose oplossing

hi, if you have not set firefox to update autmatically, you may have to manually install the following hotfix addon to be able to jump over 47.0.1... https://addons.mozilla.org/firefox/addon/firefox-hotfix/

the reason for this is a bit complicated - it's basically a certain third-party software ("websense") that causes firefox 48+ to crash on startup so we are only updating installations where we know that they aren't users of this thirdparty tool at the moment.

Lees dié antwoord in konteks 👍 1

All Replies (5)

more options

Gekose oplossing

hi, if you have not set firefox to update autmatically, you may have to manually install the following hotfix addon to be able to jump over 47.0.1... https://addons.mozilla.org/firefox/addon/firefox-hotfix/

the reason for this is a bit complicated - it's basically a certain third-party software ("websense") that causes firefox 48+ to crash on startup so we are only updating installations where we know that they aren't users of this thirdparty tool at the moment.

more options

https://www.mozilla.org/en-US/firefox/48.0/releasenotes/ Changed After version 48, SSE2 CPU extensions are going to be required on Windows

Does that "Pentium CPU @ 3 GHz" support SSE2 extensions?

more options

Hi @phillip,

Many thanks for the answer - it works!

> if you have not set firefox to update autmatically

No I haven't, I update manually. So I installed the firefox-hotfix addon, and immediately afterwards (didn't even restart Firefox), after doing "Check for updates", it offered to update to Firefox 48; after doing this update, I restarted - at this point the hotfix addon was still in about:addons. Again I did "Check for updates", it offered an upgrade to Firefox 49, did it, restarted Firefox - and now the firefox-hotfix addon is gone from about:addons, and Firefox reports it is at version 49. So all works for me now - thanks!

more options

Hi @the-edmeister,

> After version 48, SSE2 CPU extensions are going to be required on Windows > Does that "Pentium CPU @ 3 GHz" support SSE2 extensions?

Well, since I managed to install FF 49 on my Win XP, apparently the CPU does support it; however I wanted to make sure - and I found the Coreinfo terminal application:

https://technet.microsoft.com/en-us/sysinternals/cc835722.aspx

Running this, gave:

             Intel(R) Pentium(R) D CPU 3.00GHz

x86 Family 15 Model 6 Stepping 5, GenuineIntel .... SSE * Supports Streaming SIMD Extensions SSE2 * Supports Streaming SIMD Extensions 2 SSE3 * Supports Streaming SIMD Extensions 3 SSSE3 - Supports Supplemental SIMD Extensions 3 ...

Not exactly sure what the "*" and "-" mean, but apparently all is good for me now. Thanks!

more options

You should be able to download the current Release from www.mozllla.org/firefox/all/ now as of 49.0 and not get 43.0.1 anymore.

Also Mozilla may be dropping support for WinXP and Vista as of Firefox 53.0 so the only way to get Firefox security updates for a while still will be to use the then Firefox 52.0 ESR.

Gewysig op deur James