I've installed it because it's mandatory to use the passbolt data (even if I need to use it only from the web page) and now that is installed as a plugin, my firefox has begun to slow down so much that it's impossible to ear music in youtube and many other actions are also slowed down.

I have to disable the passbolt each time I start firefox to be able to use correctly the browser and if I remove the plugin (as I've already done) I can't access anymore the web site that contains the passwords.

So I highly discourage this tool if you are not forced to use it by some reason, use keepass2 instead as I do !