firefox, firefox-bin: 60.0.1 -> 60.0.2, firefox-esr: 52.8.0esr -> 52.8.1esr, 60.0.1esr -> 60.0.2esr [Critical security fix]

[taku0]

Motivation for this change

• Critical security fix
• Other bug fixes

https://www.mozilla.org/en-US/firefox/60.0.2/releasenotes/
https://www.mozilla.org/en-US/firefox/52.8.1/releasenotes/
https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/
https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox-esr/

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

Not tested

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[taku0]

Build fails because Firefox requires NSS 3.36.4. I will update this PR and change target branch to staging.