Utilizing npm packages from third-party sources within a custom extension for personal use (not intended for distribution)

Exploring the idea of developing a basic Firefox extension that involves external modules such as Firebase and Cheerio, but there doesn't seem to be much information available on this topic. I noticed there are legacy options like jpm, but they're no longer supported.

Is it feasible to incorporate npm packages into a webExtension? Could extracting the essential components of the desired libraries and placing them in a custom lib folder potentially make it work? I'm planning to test out this approach first. Any current resources or guidance would be highly appreciated!

Answer №1

If you want to streamline your add-on setup by merging it with code from an external npm package, you can use a combination of Rollup, Rollup-Plugin-Node-Resolve, and Rollup-Plugin-CommonJS to handle CommonJS modules.

You can refer to the example provided in the Firefox Addon Skeleton repository, which demonstrates this bundling technique by combining background.js with a rot13 function sourced from an npm package.

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