Question 1

How to install deno-puppeteer for Firefox?

Accepted Answer

Run PUPPETEER_PRODUCT=firefox deno run -A --unstable https://deno.land/x/puppeteer@16.2.0/install.ts to cache Firefox Nightly. Then, use the standard API in your code, ensuring the product is set correctly if launching browsers.

Question 2

deno-puppeteer or Node Puppeteer: which should I use?

Accepted Answer

Choose deno-puppeteer if you're committed to Deno for its security and modern features. Opt for Node Puppeteer if your project relies on Node.js ecosystems, npm packages, or stable runtime flags without experimental dependencies.

Question 3

How to generate a PDF with deno-puppeteer?

Accepted Answer

After launching a browser and navigating to a page, use page.pdf({ path: 'file.pdf', format: 'A4' }) as shown in the README example. Adjust options like waitUntil for network idle to ensure content loads fully.

Question 4

Can deno-puppeteer test Chrome extensions?

Accepted Answer

Yes, it supports testing Chrome extensions in automation, similar to the Node version. Refer to the Puppeteer API docs for methods like browser.targets() to manage extension contexts, though Deno-specific examples are limited.

Question 5

Is deno-puppeteer compatible with the latest Deno version?

Accepted Answer

It depends on Deno's stability updates. Since it uses --unstable, compatibility may break with Deno releases. Check the GitHub repository for issues or updates, as the README specifies version 16.2.0 which might lag behind.

Question 6

How to run deno-puppeteer in Docker?

Accepted Answer

Use the provided Dockerfile example in the repo, which installs dependencies and runs a script. Customize it for your environment, but note that it still requires Deno's unstable features, which can complicate containerized deployments.

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