XKit is a small extension framework that powers tweaks for Tumblr.
Note
New XKit does not use modern extension technologies and can no longer be added to most web browser installations. See this post on the New XKit blog for more information and alternatives: Deprecating New XKit
Currently we support Firefox and Chrome officially.
We support Opera and Edge unofficially using the same file as the Chrome extension.
First, check the list of issues, and see if there's something there that looks like the problem you're having. Otherwise, file a new issue or come join our support chat; just hop on over to our Discord server. We don't bite!
XKit needs all the help it can get! If you want to help out, the first step is finding something going wrong. There's a long list of known issues on our issues page. The next step is to fix the bug.
Come join us in the XKit Discord if you get stuck, or want some advice! There's normally a few people lurking in there any time of day.
Read the guide on writing a new extension!
Review the project prerequisites and learn how to build XKit from source.