Improve Ledger device detection and MV3 compatibility #3821
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This queries Ledger devices by vendorId instead of using a hardcoded list of known productId/vendorId matches. This is the same approach used by the underlying transport library and prevents cases where the Ledger does not show up in the list of devices to pair due to the productId being changed by a recent ledger app update. `TestedProductId` assertion was removed as TransportWebUSB already filters compatible devices.
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Prevents pairing failures by replacing the hardcoded productId list with vendorId based querying. This automatically supports new Ledger devices and firmware updates that can change internal productIds.
Added a helper function to verify the Ledger has the Ethereum app open before fully commiting to the connection flow. Within the service, supported device checks where removed as the underlying transport library already handles device compatibility filtering.
This PR also fixes compatibility issues related to event handlers with Manifest V3. Preventing race conditions where USB connect/disconnect events could be missed if handlers weren't registered in time.
These where related to the following warnings:
Notes:
If Chrome forgets the USB device pairing, Users will need to reconnect via the tabbed onboarding flow. This is a browser limitation since USB device pairing can only be requested from certain contexts, not from the extension popup or background processes.
Testing:
Tested with Nano S, Nano X, Nano S Plus. Connectivity issue found with NanoS after software update.
Latest build: extension-builds-3821 (as of Fri, 29 Aug 2025 01:43:02 GMT).