@MrT10001 Thanks for the reply I will try the MSM tool, lets see if it works from Virtualbox with USB passthrough, after if backed up all block devices with dd. Will report back.

@davidm90 said in Firefox esr 78 runtime error: For Sony Xperia X, Xenial Xerus works the best even if it has some bugs. That makes sense since there isn't a stable version out yet. Thank you for the clarification!