Mozilla Firefox Esr 52.0 64-bit !!better!! Download May 2026

: It is the last official version to support Windows XP and Windows Vista .

: This was the final version of Firefox to support NPAPI plugins like Java, Microsoft Silverlight, and Adobe Acrobat. Later versions only support Adobe Flash (until its own retirement). mozilla firefox esr 52.0 64-bit download

: It was the last ESR version compatible with "Classic" (XUL-based) add-ons before the switch to WebExtensions in Firefox 57. Key Features of Version 52.0 : It is the last official version to