Plus: New Release Date Rumor Confirms Suspicions Now that the holiday weekend is almost over, and Cyber Monday is almost here, we thought we’d talk about the newest mobile operating system and release date rumors running around the mill of late. The mobile OS rumor is a doozey, so prepare yourself… Tizen-Firefox mashup  Apparently, the Galaxy S5 will not sport Kit-Kat, but instead it will feature a Tizen-Firefox mish-mash says DesignTrned via the International Business Times. Wonsuk Lee, chief secretary of Samsung, attended an HTML5 conference, at which he stated that Samsung is working on a Tizen-Firefox relationship. Apparently, they thought about combining their resources because both mobile operating systems are coded using the HTML5 standards. Samsung has had a hand in helping to create Tizen alongside a number of other smartphone manufacturers in an effort not to get away from Android, but to make it better. Firefox-Tizen for Specific Phones Essentially, the report states that the Firefox mobile OS would be used on “entry-level smartphone models and Tizen would run on both low and high-end devices.” This rumor isn’t new to us, since we told you about the possibility that Samsung could go with Tizen some months ago, but…