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It is indeed a moot point and the question is really what is meant by 'safe'. It is regularly updated and therefore in my book it is relatively safe as long as one keeps right up to date withthe frequent updates...and runs WSA as well.
Webroot SecureAnywhere Complete Beta Tester v18.104.22.168, imaged by Macrium Reflect v7.1
And if I may once again.... Windows latest Adobe Security update is KB3202790 so if you are running Win 10 Microsoft is qiute vigilent in keeping Adobe safe and up to date.
In my opinion brd, yes it does. I have been using Firefox and in the past, there were some heads up cautions pertaining to Adobe. That however seems to be on the earlier versions of Flash Player. Since Windows and Adobe and Firefox all seem to be on the same page, the kinks have been ironed out. On a side note, its wise to download any new updates/versions of a program directly from the issuer of the program. I realize that there are quite a few sites that will offer a download/install for a program but I'm of the mindset that it should always be installed right from the issuers website. That's the safest way to proceed. As I mentioned, Win 10 just issued a security update for Adobe Flash Player, AND Adobe just ( just ='s... I just installed it on Monday 11-7-2016 ) issued the current version of Flash,
The combination of Firefox... Windows... and Webroot make for a good team. Just keep all programs up to date.