If anybody care about my opinion I'm for using Icedove/Iceweasel (minimize name proliferation, easier to merge/sync extensions from debian) in the first time and then using epiphany-webkit when it will be ready (features equivalent)
If anybody care about my opinion I'm for using Icedove/Iceweasel (minimize name proliferation, easier to merge/sync extensions from debian) in the first time and then using epiphany-webkit when it will be ready (features equivalent)