There's the awesome 'Containerise'[1] add-on for Firefox that lets you define containers for specific sites based on URL filter expressions. Pretty handy to e.g

There's the awesome 'Containerise'[1] add-on for Firefox that lets you define containers for specific sites based on URL filter expressions. Pretty handy to e.g. keep Google cookies in their own Google container. (The only downside I've found is that, if you navigate from Google directly to a site belonging to a different container, the tab will forget its history and you won't be able to go back to the Google results using the Back button. You just need to remember to open results in a new tab instead.) Using 'Cookie Quick Manager'[2] you can also move your existing cookies for some domain to their new container, so you don't have to re-login everywhere after creating your new custom containers. [1]: https://addons.mozilla.org/en-US/firefox/addon/containerise/ https://addons.mozilla.org/en-US/firefox/addon/containerise/ [2]: https://addons.mozilla.org/en-US/firefox/addon/cookie-quick-manager/ https://addons.mozilla.org/en-US/firefox/addon/cookie-quick-...