Hi: I need to know how to proceed *IF* I inadvertently installed the "XP/Vista" version of 32-bit v50 on my Win7 and Win10 systems. Reference: http://forums.mozillazine.org/viewtopic.php?f=38&t=3025405 Back story: Today -- on my third, backup, Win7 desktop -- I noticed two different 32-bit options here: https://www.mozilla.org/en-US/firefox/all/ The column headings are very jumbled (see screen shot). But I eventually figured out which of the two 32-bit installers is the correct version for 7/8/8.1/10 to install on *this* rig. ~2 days ago, however, when I updated my other two systems (Win7 and Win10), either I did not notice that new, third option, or perhaps it was not there. I may have inadvertently installed the "XP/Vista" version on a Win7 box and a Win10 box. I will get back to those computers later and will try to check. Until I do, here are my questions: 1) How do I know if installed the correct 32-bit version of Fx 50 on my other 2 boxes yesterday - the version for Win7 and above? 2) If installed the wrong one (the XP/Vista version), do I need to: -- backup my profile and install the correct version on top of the existing v50 build? -- backup my profile, uninstall Fx and reinstall the correct version? -- do nothing, if it's working properly? -- do something else? Thanks! daledoc1