Embedded twitter posts and (Linux) Firefox issue?

[krupa]

I visit the site frequently via Firefox (Firefox ESR v45.7.0) on Linux  (CentOS 7).  It seems that when someone links to a Twitter post the rest of the thread (for that page) doesn't display correctly in that the page jumps up and down.  That's a terrible description but that's about what it amounts to.  I've seen this before but most recently on the Bernhard Langer/anchored putting thread.  If I start at the top, everything is nice and stable but after @iacas link to his Twitter feed, the rest of the page gets all jumpy.  If I scroll back above the twitter link, everything's fine again.   I noticed that the reply/retreet/like buttons in the embedded Twitter post are not displayed.  I think the browser is alternately showing those buttons then hiding them again, resulting in the rest of the page re-drawing to accommodate that shift in vertical space.

Firefox 47.0.2 on Windows 10 does not have this problem.

This is most likely a bug in the Linux-specific page rendering but I thought I'd mention it.  I believe others have mentioned something similar before.

[iacas]

You can see this occasionally in other browsers and it's mainly an issue with not knowing the height of those portions.

There's not much I can do about it including it not being feasible to set min or max heights.