I have been using the free version for over a year, and never experienced low speeds or any other problems. Great extension

It works, fast and faultless

Awesome, completely negates the need for a Linux client

Never had a single issue with it. Fast and reliable and, most importantly, secure. Proton ecosystem is unrivaled by anyone in the privacy scene.

Works perfectly well

👍 My favorite VPN provider. Great ecosystem. Thanks Proton

I have no clue why this app is 3 stars on firefox, i just moved from chrome to firefox and the reviews here are innaccurate, this is by far the best free vpn on the market, no limit, if i get lucky and get the right server im able to get gigabit speeds. At the risk of sounding like a paid review (which i'd love to be) if you are looking for a free vpn these guys have nailed it.