
This displays the current version and channel of the browser.

Tap on the Alt-key on your computer keybard, and select Help > About Firefox.Open Firefox if it is not open already.You can run manual check for updates in the following way in Firefox: The update will be made available today through the browser's automatic update feature, and also on the Mozilla website. Mozilla Firefox 52.0 is available on Mozilla's public FTP server. Firefox 53.0 won't run on XP or Vista machines anymore. Windows XP and Vista users are automatically migrated to Firefox 52.0 ESR during update.

You may enable NPAPI plugin support in it.

Firefox ESR 52.0 is the new Extended Support Release version.So, no Silverlight, Java, Google Hangouts and other plugin support anymore. The new version does not support NPAPI plugins anymore, apart from Adobe Flash.Firefox 52.0 is the new stable version of the web browser.
