Indie Wiki Buddy is compatible with Firefox for Android! Unfortunately, Firefox for Android currently only supports installing a select few extensions recommended by Firefox staff.
Until Firefox for Android supports more extensions, there is a workaround: Firefox Beta has extended add-on support through its debug menu.
Note that Firefox Beta is a testing platform where new features are added and tested. It's generally reliable, but you may run into bugs and issues as new features are tested. If you are willing to use Firefox Beta (install here), follow these instructions to install Indie Wiki Buddy:
17671762, and the collection name to
Indie-Wiki-Buddy. Press "ok" to save; Firefox will close.
Hopefully this works for you! If you run into any issues or have any questions, feel free to get in touch via the contact info listed on the homepage.