Currently my website runs great on google chrome, but i downloaded the latest Firefox (46.0.1) and there’s a serious issue with the icons in the top right of the website. See image below: Firefox on the left, Chrome on the right.
That flexbox contained all three of the icons within it at a height of 24px. Chrome just wrapped the icons past the bounds of the flexbox, firefox actually did what the code said and contained the icons within it.