firefox: 56.0.2 -> 57.0 [Security fixes]

[taku0]

Motivation for this change

• Various security fixes
• A completely new browsing engine, designed to take full advantage of the processing power in modern devices
• A redesigned interface with a clean, modern appearance, consistent visual elements, and optimizations for touch screens
• Legacy extensions will no longer work.

https://www.mozilla.org/en-US/firefox/57.0/releasenotes/
https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/#firefox57

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option build-use-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.

firefox-esr is not tested.

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[fpletz]

Does this version of firefox depend on the nspr and nss updates? This could complicate backports.

[taku0]

@fpletz Yes, Firefox always depends on the latest NSPR and NSS. The configure script checks the version.

[tokudan]

I've added a pull request to backport firefox-bin to release-17.09 in #31663

[lheckemann]

This changes the options used to build the ESR as well, though I don't really think it should…

[domenkozar]

I've backported the source version as well.

[fpletz]

@domenkozar It won't compile, though: #31706