Reminder: XP users who wish to continue using an updated browser have less than 30 days to cease the use of Chrome. It will continue to function but no longer be updated past that point.
http://chrome.blogspot.com.au/2015/11/updates-to-chrome-platform-support.html
That leaves Mozilla based browsers like Firefox as the remaining major 32-bit browser that still supports, and is routinely updated for the 32-bit XP OS (SP2 or SP3). This support extends for the e-mail app, Thunderbird, as well.
https://support.mozilla.org/en-US/questions/1071898
https://support.mozilla.org/en-US/kb/firefox-no-longer-works-some-versions-windows-xp
https://support.mozilla.org/en-US/questions/1108395
Long time browser, Opera represents an alternative browser and e-mail apps with its own unique code that still support the XP OS.
I can certainly understand the reluctance of an app developer, especially one for a browser–that represents the entry point these days for most malware–to not want to be legally blamed (liability) for an issue that may come about linked to an archaic OS, but blamed on the browser maker. XP users still account for more than one in ten web surfers. Heck many of you XP users are still using IE8, or even IE6 so just ignore this post.
