I recommend this if you are on Reddit regularly. The only problem I've had with it is the account switcher. It seems to work with the old layout only with the Firefox version of this addon. However, you can easily get around this using another addon by Mozilla called 'Multi-Account Containers'.

It is difficult to experiment with settings.

Pretty good add on, makes Reddit great. Only problem is never ending reddit seems to skip over NSFW content after a few pages since last update