Yes. Install this add-on on your browser, the first link is for Firefox, the second for Chrome:
Then use it to run this userstyle:
In one of the other discussions I found another style that is more similar to true arabic font, but still very readable (not so ridiculously small). I had that on my computer, but with the forced switch to windows 10 I lost it. It was called something like wuhuu, I'm not sure. Could anybody help me with this?