Motivation for this new requirement is: ## Why
Each particular network your computer and browser run in has its own set of network conditions, routers, proxies and MITM situations. Changing between networks also changes proxies. Intercepting or explicit, willing or unwilling, HTTP or even HTTPS with custom installed trust-roots. This makes the web content cache, the cookie store and others to save contents from one network that is potentially different than what is received over other networks. It can lead to content pollution and information leaks, on purpose by malicious actors or just by mistake. see the details here https://bug1240932.bmoattachments.org/attachment.cgi?id=8709691 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1628956 Title: From v49.0, Firefox needs read access to @{PROC}/net/arp To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1628956/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs