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Firefox PDF Viewer (PDF.js) vs Stackless Python

A side-by-side look at Firefox PDF Viewer (PDF.js) and Stackless Python. For an in-depth review of either product, follow the links below.

Firefox PDF Viewer (PDF.js)

Firefox PDF Viewer (PDF.js)

Web Browsers

Firefox PDF Viewer (PDF.js) is an open source PDF viewer that is built into Firefox. It allows you to view PDFs directly in the browser without needing an external plugin.

open-sourcepdfviewerfirefoxbrowser-plugin
Stackless Python

Stackless Python

Development

Stackless Python is a Python programming language implementation featuring microthreads and no Global Interpreter Lock (GIL). It allows massive concurrency and offers better scalability for Python programs.

pythonconcurrencymicrothreadsscalability