[wongarsu]

Given that the issue of Firefox being forced to restart primarily happens on Linux, I doubt Edge is an option for them. Though I have to concur that Edge has one of the most stable and smooth vertical tab implementations around, most of the plugin-based ones are more fully featured but much less reliable.

[tmtvl]

Edge has been released for Linux a while now... not that I know anyone who uses it, but it's available for those who need it.

[tracker1]

I use it, and it's decent. And more in the vein of "it's not google" though I do slightly prefer the chrome dev tools to the modifications that Edge has made. I don't like a lot of the "helpers" for shopping though. And definitely don't like the article wall with ads that are really hard to block/script out.