I read that Pwn2Own stopped attacking Firefox, apparently because it didn't make "serious security improvements" since the last competition.
Should I understand it as "Firefox is significantly more vulnerable than other browsers", or can I continue to use it safely? Is there currently any big difference in the security of Chrome, Firefox, Edge, Opera and Safari?
I know all the advices one must use to stay secure on the Web. I'm just not comfortable using a browser that could easily be exploited.