It is probably safer to use an unbranded build with the same version as the currently installed Firefox (take note that it will not update). Page with links to the latest release builds:…
I often submit equivalent queries when searching using Google. I tend to use OR a lot to specify alternatives to specific keywords (e.g. osx OR "os x" OR macos), though it's a years-old habit often not that important…
It is probably safer to use an unbranded build with the same version as the currently installed Firefox (take note that it will not update). Page with links to the latest release builds:…
I often submit equivalent queries when searching using Google. I tend to use OR a lot to specify alternatives to specific keywords (e.g. osx OR "os x" OR macos), though it's a years-old habit often not that important…