Playwright Firefox blockRequests: CDP session is only available in Chromium

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@crawlee/playwright (PlaywrightCrawler)

Issue description

I would like to use Playwright with Firefox and use blockRequests. However, it seems to be working with Chromium only because I get the following error messages:

browserContext.newCDPSession: CDP session is only available in Chromium

If I remove the preNavigationHooks, I don’t get the error. In the documentation there is no mention of it being exclusive to Chromium. Is it?

Code sample

launchContext: {
        launcher: firefox
    },
    preNavigationHooks: [
        async ({blockRequests}) => {
            await blockRequests({
                urlPatterns: ['google.com']
            })
        }
    ]

### Package version

^3.0.0

### Node.js version

v19.0.0

### Operating system

Ubuntu

### Apify platform

- [ ] Tick me if you encountered this issue on the Apify platform

### Priority this issue should have

Medium (should be fixed soon)

### I have tested this on the `next` release

_No response_

### Other context

_No response_

[barjin]

well, from 3.1.1 on, it will print a warning message (while using Firefox/Webkit) and won’t fail completely. This means, you’ll be able to switch between browsers in your code (and they will all work, plug-and-play style), but Firefox still won’t block any requests.

If you need to block certain requests with Firefox, you can always use Playwright’s native page.route() with appropriate handlers - this will disable browser cache and might lead to some performance issues, though 😕

[AndreyBykov]

@galaczi It’s currently available in beta. Would be at latest with the next minor release (i.e. should be available in 3.1.1).