I find it irritating that Mozilla now herds its Firefox users toward the Stub installer, and not the full offline-install redistributable binary. The actual download itself is available on the "Systems & Languages" page: > https://www.mozilla.org/en-US/firefox/all/ This kind of download is important, when you want to try out a new release, without committing yourself to it. For example, let's say you want to load it…
Alternatively, you could wait for the folks over at PortableApps to update: http://portableapps.com/apps/internet/firefox_portable
That site does not readily provide hashes for their binaries (MD5, SHA512, whatever), and the page is smeared with ads. There's no way to know if the site is trustworthy.
And, anyway, where would I get the trustworthy hashes? They'd need to be communicated to me, directly from the horse's mouth. I'd need to visit ftp.firefox.com, to find out what the correct hashes are in the first place, and then check them against the binary download I receive from your site.
The link you should have provided was:
http://sourceforge.net/projects/portableapps/files/Mozilla%2...
Version 25 isn't listed there yet.
All of this is even less convenient than digging for and deciphering the meaning of Firefox's official downloads.