Why are so many add one coming up saying not available on my device. This only started about 6 or 8 months ago. Hoxx vpn I liked the most but haven't been able to use it for a long time. And if u try to use more than one add on the browser is so slow it's not worth having. They should tell u if they are compatible. The play store only offers one version of Firefox be so why does it say I have wrong version.