No, that's not legitimate. I just report that page to the Safe Browsing website.

https://www.google.com/safebrowsing/report_phish/

Users can report web pages like that thru Help > Report Web Forgery...

Oldbaldteacher said

Is this a legitimate patch from Firefox or a virus?

Look at the eijugonsemi.net url name as does that look like a name Mozilla would use to serve a Firefox download or update?

Update for Firefox is never a .exe whether on Windows, Mac OSX or Linux.

This is just one of several sites in last while trying to trick Windows users into downloading a fake Firefox patch/update .exe to infect their Windows with trojans as can be seen in https://support.mozilla.org/en-US/forums/contributors/712056

I've reported this to the 'deceptive website link' from the menu bar I just don't remember how many times but nothing is being done about it. We need to know because it's very annoying now.

jetergirl6,

Those links change everyday and it seems that multiple links are used everyday. Very difficult to shut that guy down.

If you don't want to see that "stuff" use uBlock Origin to block it.

https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/