Pages won't stop loading (specifically on tumblr)?

[JS]

For about a week I have been having trouble with pages loading. Most of the time they load partially and have the spinning wheel on the tab perpetually spinning. It mostly happens on tumblr, I can't load my blog specifically at all, and a lot of other people's blogs too. Most often I have to reload other people's pages over and over and over again until it loads just enough. It also no longer lets me make posts of my own, as the box to type in/drag in a picture simply do not load at all.
This happens on both Google Chrome and Firefox. I'm incredibly confused and frustrated. I would appreciate it if someone could help me out.

[sextacy]

ur screwed