I rarely do video calls. The thing I can't live without is SMS from my computer (via the Hangouts/Voice integration). Is there another good way to do SMS from

I rarely do video calls. The thing I can't live without is SMS from my computer (via the Hangouts/Voice integration). Is there another good way to do SMS from a computer? Phone calls from my computer (with my own number) were nice until they stopped working. Now I just open Chrome when I need that, but it would be nice to have it working in FF.