[repack] - Download Firefox 12-51 52 Esr

– they have unpatched critical security vulnerabilities . Use them only for:

Firefox 52.9.0 ESR was the final version of Firefox to support Windows XP and Windows Vista . It was also the last version to support legacy NPAPI plugins Download Firefox 12-51 52 Esr

Only use the old browser to access the specific legacy site or application you require. – they have unpatched critical security vulnerabilities

If you are downloading for a corporate environment, avoid standard version 52.0. You want . and Adobe Acrobat.

It was the final version of Firefox to support NPAPI plugins like Silverlight, Java, and Adobe Acrobat.