The 32-bit architecture is often selected for specific technical reasons:
: Required at least a Pentium 4 or newer processor with SSE2 support. Linux Dependencies
If you're having trouble finding Firefox 51.0.1 32 bit on the official Mozilla website, you can try downloading it from alternative sources. Some popular options include:
The specific 51.0.1 update resolved two major issues found in the 51.0 release:
: Firefox 51 began displaying a gray lock icon with a red strikethrough in the address bar when users accessed login pages that did not use HTTPS. Improved Video Performance
log into email, social media, banking, or any account. Use it only for:
That is correct. You cannot fix this. Use an alternative lightweight browser for the modern web (e.g., Mypal 68 for XP, or Supermium) and keep Firefox 51.0.1 only for the specific legacy app it was downloaded for.