I recently noticed that whenever I do video playback the corresponding tab will spike to 60% CPU usage (in a single CPU thread) and doing profiler in Firefox's process manager clearly shows that Bitwarden (requestIdleCallback handler) causes this.
Disable the extension and refresh video website solves the issue for me.
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This issue can be mitigated by add domain name to Autofill setting -> Blocked domains
github.com bitwarden/client issue 12045

5 stars cos bitwarden is amazing but I have to say, since recent update the firefox extension doesn't work for me on macos any more :(

Using 2026.6.1 version and still slowing down my Chrome and Firefox browser and spikes CPU on my mac last weeks. I am so sorry, cause it was working fine for years until now.

This is an great extension that i need to store passkeys!

Recently replaced another secrets manager with Bitwarden and have been mostly pleased with the transition. Something changed recently though and the browser plugins for Firefox variants seem broken / unable to connect to the binary install for macOS. First it seemed like just biometrics but browser passwords are just completely broken now. It's something that can be worked around but also shouldn't have happened in the first place.

Changing the API to break logging in is unnecessary and short-sighted. I should know, I have prescription lenses.

Absolute must have. Bitwarden, in this day and age of subscription are giving this cross platform gold for free is mind blowing to me. It even supports passkeys on free account!

I never write reviews for extensions, but a change in the extension has made my workflow impossible. I used to always click the item name to see the contents, but now it automatically autofills, which is something I do not want. I had to downgrade back to a 2025 version of the extension to make it usable for me again.

Slowing down various websites when active.

Лагает из-за расширения жутко.
В ютубе плейлист длинный на 400+ видео музыки просто интерфейс умирает, через 3 секунды только реагирует аж курсор пропадает.

L'add-on anche avendo l'impostazione correttamente inserita non permette l'accesso con pin. ogni volta bisogna inserire la password per intero. Non è possibile per un app del genere. Correggete per favore.

Why can't I install it on one Android phone ? The button is grey out.

This add-on of Bitwarden is marvelous and especially the sidebar feature on FireFox work well.

Many crashes while using this extension in firefox, also not completely optimised.