I'm just posting this from tumblr since it might save someone a lot of hassle. However... For those of you that might be affected and are using FireFox, I found this which might help until you can update. It's just as addon that disables Flash. Keep safe everyone.
Thank you, @Laurence_Fox! I just updated from 18.0.0.194 to 18.0.0.203. I also updated my mom's as she was severely outdated. Way back on 17.0.0.190.
@Laurence_Fox (and anyone else viewing this): Seems the latest version is now considered vulnerable, but if you know a site is safe, such as KHV, I guess it's okay to allow Flash? 1182751 – (CVE-2015-5122) Blocklist vulnerable versions of Flash Player plugin (18.0.0.203 and lower) As such, Firefox has now changed the plugin's default setting from Always Activate to Ask to Activate.
I just saw the option to disable it and I am disabling it until I see some sort of confirmation that all the vulnerabilities are taken care of. Here's some further information and I'll be keeping an eye on the situation.
That's how it works, sadly. They get one security issue patched and two more pop up in its place.[DOUBLEPOST=1436913504][/DOUBLEPOST]@Laurence_Fox: Patch is being rolled out: 18.0.0.209. However, if you want to get it as quickly as possible: https://get.adobe.com/flashplayer/
Mozilla has announced that Flash will no longer be supported by default in Firefox until Adobe resolves the security risks. They also say that the block is dependent on Adobe. Once the risks are taken care of, Firefox will begin to support the plugin again. http://www.businessinsider.com/mozilla-blocks-insecure-adobe-flash-firefox-2015-7