Definitely not with the Iceweasel fork. https://github.com/fork-maintainers/fenix
The point is that using anything that's not Google Chrome is better for the internet.
> In August 2005,[11] the GNUzilla project adopted the GNU IceWeasel name for a rebranded distribution of Firefox that made no references to nonfree plugins.
> [...]
> The GNU LibreJS extension detects and blocks non-free non-trivial JavaScript.