[java] Set remote active protocol to BiDi for Firefox

[pujagani]

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Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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PR Type

Enhancement

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Description

• Set Firefox remote active protocol to BiDi only

• Updated FirefoxOptions to use BiDi protocol by default

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Changes walkthrough 📝

	Relevant files
Enhancement	FirefoxOptions.java Default FirefoxOptions to BiDi protocol only                          java/src/org/openqa/selenium/firefox/FirefoxOptions.java Changed the remote.active-protocols preference from 3 (CDP+BiDi) to 1 (BiDi only) Updated inline comments to reflect BiDi-only support +2/-3

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⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Breaking Change This change switches Firefox from supporting both CDP and BiDi protocols (value 3) to BiDi only (value 1). This is a breaking change that could affect users relying on CDP functionality with Firefox. addPreference("remote.active-protocols", 1); }

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[titusfortner]

Curious what this is doing/why it is needed?

[pujagani]

We had set the active protocol to 3, which supports both BiDi and CDP while CDP was being deprecated. But now that CDP support in Firefox is removed and Selenium has removed the support too, we want to switch to the default protocol, which supports only BiDi. We need to do it for all languages, but I was trying with Java first to see if I wasn't breaking anything.