It kind of sucks that Missing e. is no longer available for everyone to download. Sucks even more if you got used to it but it stopped working (like me). But after some searching, I found the scripts that the missing e. creator made that led up to missing e. Most of these are self explanatory. Looks like most of these work in Chrome and Firefox.
Post Crushes - http://userscripts.org/scripts/show/95561
Photo Reply Always: http://userscripts.org/scripts/show/84948
Reply Replies - http://userscripts.org/scripts/show/91350
Timestamps - http://userscripts.org/scripts/show/93279
Bookmarker - http://userscripts.org/scripts/show/94042
Safe Dash - http://userscripts.org/scripts/show/94450
Reblog Yourself - http://userscripts.org/scripts/show/85103 (note, this one works a little differently, you have to go to the post itself rather than simply reblog from your dashboard)
Dash Links Open in New Tab - http://userscripts.org/scripts/show/94575
Goto Dash Post - http://userscripts.org/scripts/show/92173
1-Up - http://userscripts.org/scripts/show/94371 (plays the Mario Sound after every 100 likes...haha)
If you want a link to all of them on one page - http://userscripts.org/users/113977/scripts
I omitted unfollowr and follow checkr because they appear to not work anymore, but if you want to install them anyway they're on the page I posted last.
Tumtaster - http://userscripts.org/scripts/show/29860 (this one lets you download songs directly from Tumblr Posts!)
Upload Photo Button For all Posts - http://userscripts.org/scripts/show/89242
Ask Box on Dashboard: http://userscripts.org/scripts/show/100607 (you have no idea how useful this really is if you've never used it)
I hope this helps someone out.