Could not establish connection accounts.firefox.com

[timlag1305]

Describe the bug
When using the plugin to login to accounts.firefox.com in Firefox on Linux, it fails with "Could not establish connection. Receiving end does not exist."

This issue doesn't seem to happen on other sites.

To Reproduce
Steps to reproduce the behavior:

1. Go to accounts.firefox.com to login.
2. Try using credential entry from the extension
3. See error message: "Could not establish connection. Receiving end does not exist."

Expected behavior
The login info should be pasted into accounts.firefox.com site.

Screenshots

System (please complete the following information):

• OS: CachyOS kernel 6.18.8
• Browser: Firefox 147.0.2
• Gopassbridge version: 2.1.1
• gopass --version: gopass 1.16.1 go1.25.5 X:nodwarf5 linux amd64
• gopass-jsonapi --version: gopass-jsonapi version 1.16.1