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Update FAQ with an entry on cross-browser support #5360

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merged 2 commits into from Jan 29, 2020
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Update FAQ with an entry on cross-browser support #5360

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Update FAQ with an entry on cross-browser support
TimvdLippe Jan 29, 2020
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Update README.md
TimvdLippe Jan 29, 2020
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11 changes: 11 additions & 0 deletions README.md
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Expand Up @@ -296,6 +296,17 @@ Check out [contributing guide](https://github.com/puppeteer/puppeteer/blob/maste
The Chrome DevTools team maintains the library, but we'd love your help and expertise on the project!
See [Contributing](https://github.com/puppeteer/puppeteer/blob/master/CONTRIBUTING.md).

#### Q: What is the status of cross-browser support?

Historically, Puppeteer supported Firefox indirectly through puppeteer-firefox, which relied on a custom, patched version of Firefox. This approach was also known as “Juggler”.
After discussions with Mozilla, we collectively concluded that relying on custom patches was infeasible.
Since then, we have been collaborating with Mozilla on supporting Puppeteer on “stock” Firefox.
From Puppeteer v2.1.0 onwards, as an experimental feature, you can specify [`puppeteer.launch({product: 'firefox'})`](https://github.com/puppeteer/puppeteer/blob/v2.1.0/docs/api.md#puppeteerlaunchoptions) to run your Puppeteer scripts in Firefox, without any additional custom patches.
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This doesn't specify if consumers still need puppeteer-firefox or not.

puppeteer doesn't come with Firefox by default so setting it to product: 'firefox' is only the first step.

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@mathiasbynens @TimvdLippe


We will continue collaborating with other browser vendors to bring Puppeteer support to browsers such as Safari.
This effort includes exploration of a standard for executing cross-browser commands (instead of relying on the non-standard DevTools Protocol used by Chrome).


#### Q: What are Puppeteer’s goals and principles?

The goals of the project are:
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