Depending on your browser, go to Settings -> Privacy. There you can clean your cache. Cleaning cache means the browser deletes cookies and former information. You will have to login again after cleaning your cache.
actually the cache only cleans the images - your browser saves every single image in order to provide a faster loading, cleaning your cache will force the sites to update their images, fixing problematic images ^^
Yeah, basically the cache is like a temporary storage that your browser uses to store files needed to display things. Media stuff, images, scripts, style sheets, etc. How you clear depends on the browser. In most, you can CTRL+Shift+DELETE to clear browse data.
Basically, think of it this way - the computer cache is like a tub with the plug in the drain. Your cache is the water. Clearing your cache is taking that plug out and emptying the tub. You'll have to log back into everything but that's about the worst of it.
If you ran into the whole "Tree not loading" thing like I did, just find your control key (might be labeled something like "ctrl") and F5 and click both at the same time. That should fix your problem. c:
