Switching between profiles in Firefox is the most painful experience ever. Running multiple Firefox profiles simultaneously requires using a terminal command.

Switching between profiles in Firefox is the most painful experience ever. Running multiple Firefox profiles simultaneously requires using a terminal command. Switching between profiles in Chrome involves clicking on an easy to find button, and lets you easily run multiple profiles in parallel. No terminal involved, accessible to anyone. To be fair, running multiple chrome profiles in parallel kills my (somewhat old) machine (mostly by virtue of having too many tabs in each profile), so Firefox does win there.