Is this a system-wide issue, or just one that I have? There are a lot of boxes in the hebrew. I think it might be because the pasted text may have ta'amim, that are not being displayed properly.
If this is not a system-wide problem, any tips on how to solve it?
I'm using Chromium on Linux. Lubuntu 16.04. I do not have any special Hebrew support enabled. To make matters more interesting, I'm answering this on my phone (chrome on iOS 9.3.2), and the text that I pasted in the question does show up properly with the ta'amim. No boxes.
Comments also report a problem with Chrome on Ubuntu but that it works with Chrome on Windows and Mac.
A further proof that this may be the ta'amim. Here is a copy paste from here (where the ta'amim are included).
כִּֽי־תֵצֵ֥א לַמִּלְחָמָ֖ה עַל־אֹֽיְבֶ֑יךָ וּנְתָנ֞וֹ יְהֹוָ֧ה אֱלֹהֶ֛יךָ בְּיָדֶ֖ךָ וְשָׁבִ֥יתָ שִׁבְיֽוֹ:
This shows a bunch of boxes for me, where the letters that have the Ta'amim should be. Does it show up properly for anyone else?
Here's another one: What does the munach say?
And another one: https://judaism.stackexchange.com/a/84258/603