I currently have BW v.2026.5.1 in Firefox, and I don’t see any slowness. Even with v.2026.5.0 and v.2026.4.0, I didn’t have any problems with sites/logins. The only noticeable bug was on the saving of autofill settings, which was fixed in v.2026.5.0.
Disclaimer: I’m a developer, and I use very powerful PCs.

If other people are still complaining, it may be one (or more!) of the following things:
- They have a slow or very low-end PC
- They have a compromised PC
- They use some particular, specific sites, e.g., Reddit (?) (I don’t use it, so I can’t tell), which may still be problematic with BW

Bitwarden extension has been a total nightmare in Firefox for a while now with no fix in sight.
Freezing webpages, crashing tabs etc.

The extension does not connect with the desktop app and im unable to use biometrics. Unnacceptable

Issue with Firefox has not been fixed for a week.

This worked great in my firefox on windows. Until last week. Constantly pop ups saying it would slow down the browser. Of course, i dont know what the reason is. I have to deactivate it and then activate again to log in somewhere and then deactivate again, and its annoying and feels like i can´t trust it anymore.
I can see that others have the same problem recently.
Dear developers, do somehting or at least give a sign that you read our recent reviews.

DO NOT INSTALL Version 2026.5.0 !
Slows down webpages significantly. I suggest installing the older version, you can do that below the add-on page under the section "See all versions".

DO NOT INSTALL THIS VERSION!
Slows down webpages significantly for some reason. I suggest installing the older version, you can do that below the add-on page under the section "See all versions".

Crashes my browser, terrible update! I can only use my browser if I disable the extension

They've made changes to this that effectively make browsing certain sites painful - the extension consistently stops responding and slowing the browser down.

Horribly optimised

slows down or freezes the browser. regularly runs `querySelectorAll form, input:not([data-bwignore]):not([type="hidden"]):not([type="submit"]):not([type="reset"]):not([type="button"]):not([type="image"]):not([type="file"]):not([type="search"]):not([type="url"]):not([type="date"]):not([type="time"]):not([type="datetime"]):not([type="datetime-local"]):not([type="week"]):not([type="color"]):not([type="range"]), textarea:not([data-bwignore]), select:not([data-bwignore]), span[data-bwautofill]`

not recommended to install, slows down the whole browser constantly

If you have to log in to a third party website a plugin should be avoided at all costs.

You are the product.

A great extension, but recently the extension is showing massive performance issues, slowing down the browser to a halt. Specifically on Reddit for me, for some odd reason.

What in hell did you do to my boy, please fix this crap

Love this extension, been using it for years, but please for the love of all that is holy... Fix the massive performance issues...

The latest update 2026.5.0 is causing major issues and slowing down many sites and making the entire browser grind to a halt at times... this is unacceptable.

Decent app, used to be better. Can't login and causes slowdowns lately.

Slows down some sites immensely

Pretty please, make the 2026.5.1 version available asap, it should resolve a very annoying significant slowdown issue on some websites!