"Mass popularity" refers to something that is liked, enjoyed, or supported by a large group of people. It means that a lot of people find it appealing or are interested in it. Full definition
A politician achieves mass popularity due to a strong vision of the future, but fails to deliver on key promises. (hudson.hk)
I don't mean this because they had mass popularity on their mind. (latimes.com)
Unfortunately, the ties that bind all Linux distributions — primarily a lack of support for major Windows - and Mac - based business, design, and gaming applications — still hold Ubuntu back from mass popularity. (entrepreneur.com)