The latest version of Firefox that runs on Windows XP is 52. You can download it from http://ftp.mozilla.org/pub/firefox/releases/52.9.0esr/win32/

Unfortunately we can't provide support for old versions of Windows forever, and since Windows XP has not been supported by Microsoft for many years it is not safe to continue to use on the internet anyway.

If you're wanting to use a VPN, I'd suggest using a whole computer VPN, not a free VPN add-on in the browser anyway.

Is this what you are looking for? http://legacycollector.org/firefox-addons/

The newest Firefox possible version at my hardware is 47 because its CPU dose not support SSE2 , and there is no any add-ons searchable in the Add-ons tab. and I can,t use a whole computer VPN , and security is not most important topic for us ... , Please Please Please help us , for the Mozilla,s main aim : access to the web for all people !

Thanks a lot for your notice !

Unfortunately in that case there isn't much that can happen. I understand your predicament but at a certain point we have to make the decision to no longer support certain operating systems. Mozilla provided support for Windows XP for many years after Microsoft themselves stopped, and further support was not possible after a certain point.

The newest Firefox possible version at my hardware is 47 because its CPU dose not support SSE2 , and there is no any add-ons searchable in the Add-ons tab. and I can,t use a whole computer VPN , and security is not most important topic for us ... , Please Please Please help us , for the Mozilla,s main aim : access to the web for all people !

Thanks a lot for your notice !

Thanks

FredMcD said

Is this what you are looking for? http://legacycollector.org/firefox-addons/

Thanks alot , But dose not work for me !

Tyler Downer said

The latest version of Firefox that runs on Windows XP is 52. You can download it from http://ftp.mozilla.org/pub/firefox/releases/52.9.0esr/win32/ Unfortunately we can't provide support for old versions of Windows forever, and since Windows XP has not been supported by Microsoft for many years it is not safe to continue to use on the internet anyway. If you're wanting to use a VPN, I'd suggest using a whole computer VPN, not a free VPN add-on in the browser anyway.

The newest Firefox possible version at my hardware is 47 because its CPU dose not support SSE2 , and there is no any add-ons searchable in the Add-ons tab. and I can,t use a whole computer VPN , and security is not most important topic for us ... , Please Please Please help us , for the Mozilla,s main aim : access to the web for all people !

Thanks a lot for your notice !

Hello saminur,

Maybe you could let us know which add-on(s) you need  ?

McCoy said

Hello saminur, Maybe you could let us know which add-on(s) you need  ?

I need only an anti-censorship add-on

Until a few days ago "connected over" was useful.

saminur said

I need only an anti-censorship add-on

Maybe you could contact the developers of the add-ons you are looking for on the addons.mozilla.org page, if they have a version of their add-on that will work with Firefox 47 ..... (?)

Like this one :

https://addons.mozilla.org/en-US/firefox/addon/stealthy/

email address :     [email protected]

Or this one :

https://addons.mozilla.org/en-US/firefox/addon/anonymox/

Under "More information" => Support Email

saminur said

Until a few days ago "connected over" was useful.

You just added this to your post ....

Is this the one you're talking about ?

https://addons.mozilla.org/en-US/firefox/addon/connectedover/

If so : their oldest version will work with Firefox 48 and not 47 ......

But you could send them an email - see under "More information" => Support Email.

Extensions like Browsec VPN and anonymoX still have a WebExtension version, so their Legacy version should probably still work.

• anonymoX http://legacycollector.org/firefox-addons/325576/index.html
• Browsec VPN http://legacycollector.org/firefox-addons/603434/index.html

cor-el said

Extensions like Browsec VPN and anonymoX still have a WebExtension version, so their Legacy version should probably still work.

• anonymoX http://legacycollector.org/firefox-addons/325576/index.html
• Browsec VPN http://legacycollector.org/firefox-addons/603434/index.html

In Iran dose not work

McCoy said

saminur said

Until a few days ago "connected over" was useful.

You just added this to your post ....

Is this the one you're talking about ?

https://addons.mozilla.org/en-US/firefox/addon/connectedover/

If so : their oldest version will work with Firefox 48 and not 47 ......

But you could send them an email - see under "More information" => Support Email.

Firefox 48 need SSE2 and maximum version for me is 47

saminur said

Until a few days ago "connected over" was useful.

This add-on is indeed not listed on legacycollector.org/firefox-addons/

Firefox version 48 is the oldest version that add-on will work with; unless you're willing to try one of the legacy add-ons that are listed on legacycollector.org/firefox-addons - you could try to contact the developer, as you mention that it worked just fine till a few days ago .....

This article would suggest that Firefox 49 requires SSE2 and that Firefox 48 still should work. Note that recommended doesn't mean that you actually need SSE2

• https://support.mozilla.org/en-US/kb/your-hardware-no-longer-supported#firefox:winxp

The System Requirement pages confirm this. Recommended HardwareL Pentium 4 or newer processor that supports SSE2

• https://www.mozilla.org/en-US/firefox/48.0.2/system-requirements/

Pentium 4 or newer processor that supports SSE2

• https://www.mozilla.org/en-US/firefox/49.0.2/system-requirements/

All Firefox releases on the Mozilla server:

• https://download-installer.cdn.mozilla.net/pub/firefox/releases/48.0.2/

Thank you all friends , But my problem did not solved !

Were you able to install Firefox 48.0.2?

cor-el said

Were you able to install Firefox 48.0.2?

I installed Firefox 48.0.2 now .