XDM addon downloads .md files instead of viewing Github text files in-browser

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Describe the bug Attempting to view many different text files on github downloads a very hard-to-read .md file when the browser extension is installed on Firefox (developer edition).

To Reproduce

1. Have XDM v8+ Browser Helper installed on Firefox (developer edition).
2. Click on a link to a text file in a Github repo, e.g. https://github.com/Genymobile/scrcpy/blob/master/doc/window.md#fullscreen
3. See a file with the name of the file with .md appended, e.g. window.md, be downloaded by XDM.

Expected behavior I expected to be able to read the files in-browser as happens without the addon installed/enabled.

Screenshots None taken.

Please complete the following information:

• OS: Windows 10
• Browser: Firefox Developer Edition 119.0b6
• XDM addon Version: 3.4
• XDM Version: 8.0.29 BETA

Generated log using below method Attempted to use provided log gen method; when I entered "java-runtime\bin\java" -jar xdman.jar it returned the error The system cannot find the path specified.

Additional context I tested on a separate Firefox profile with only the addon installed; it still happened.