Also, I only submitted the patch via that email. I haven't committed it to any repos yet. You're free to take my code and run with it to finish this -- thank you!

Hey @kakaroto -- this has been on my todo list, but if you can do it first (plus if you can do it for the L13, which I don't have information on) then please go ahead. My patch works with my L15 but I don't have more than one model to test it on.

In T147#3213, @chris.lamb wrote:

Purebrowser is currently out of date as rebuilding the latest esr results in extremely strange rendering artifacts such as completely missing icons and lines, etc. until I mouseover:

https://i.imgur.com/LRaquLX.jpg

A regular firefox-esr does not suffer from this problem, so I am (temporarily!) stumped as to why this happens.

I submitted a patch for the Librem 15 here: https://mail.coreboot.org/pipermail/flashrom/2017-November/015218.html

In T247#4470, @chris.lamb wrote:

In T247#4401, @jonas.smedegaard wrote:

User agent sniffing is an anti-pattern. Our browser getting identified as different from Firefox is a feature, not a bug.

Whilst I 100% agree in principle, after working for (gosh) 10 years in web development it is something that is really unavoidable :(

I learned that Option 2 can be enabled by the user in a safe way by setting the "general.useragent.compatMode.firefox" parameter in about:config to true -- that is the purpose of that option which is only available in Firefox derivatives.