In #Mastodon, if you have a browser notification from someone with a display name in an RTL (right-to-left) script (#Persian, #Arabic, #Hebrew, etc.) you'd see the text displayed in the wrong order. It's the same the other way around: if you have an #LTR name displayed in your #RTL interface.

Now, this problem is fixed in 1.4.1 if your account's interface is set to Persian. If you are interested to fix this bug in your own (LTR or RTL) locale, see this github issue: https://goo.gl/HVq4dZ