[🚀 Feature]: read browser config

[dornech]

Feature and motivation

When connecting to existing browser sessions, it might be helpful to read config data like the current download directory. Currently I think this is only possible via calling the internal settings-page and then searching for the key.
I wonder if it is possible, to make the access to settings more straightforward.
I think of a webdriver method to download the config as JSON.

I understand somthing like this was discussed here but there was no real follow-up?
#13124

Usage example

well, I think the idea is pretty clear ?

[github-actions]

@dornech, thank you for creating this issue. We will troubleshoot it as soon as we can.

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[diemol]

Similar to the referenced issue, Selenium cannot directly address this. You need to raise it to each browser vendor.

[dornech]

I see the point. For further interest some remarks:

For Chrome (and other Chromium based browsers) it should be quite easy to achive that via accessing chrome://prefs-internals/

For FireFox it is more troublesome but achievable via evaluating prefs.js / user.js.
Sample Python script here: https://stackoverflow.com/questions/24548306/how-to-read-firefoxs-aboutconfig-entries-using-python/24563687#24563687

However, the config key are browser specific anyway.

[github-actions]

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