Hi! 👋 This is a fairly common issue when adding maps.google.com to a specific Firefox container. Here is some information that may help you: 1. Google Maps opens in the container, then loops with the cookie page This phenomenon often occurs when: Subdomains like consent.google.com, ogs.google.com, etc. are not included in the same container Sites redirect to other domains/subdomains that are not associated with the container Cookies are not shared between containers, which is why the consent confirmation is not saved Solution: Try adding all subdomains (e.g. consent.google.com) to the same container manually. Unfortunately, the Multi-Account Containers extension does not currently support asterisks (*.google.com). 2. Can I add a page to a container via a configuration file? There is no official way to configure containers via an external file. However, there is an experimental procedure via about:debugging and the extension's internal storage: Find "Multi-Account Containers" and click Inspect 1. Open about:debugging → "This Firefox" 2. Find "Multi-Account Containers" and click Inspect 3. In the console, type: let data = await browser.storage.local.get(); data["siteContainerMap@@_google.com"] = data["siteContainerMap@@_maps.google.com"]; delete data["siteContainerMap@@_maps.google.com"]; await browser.storage.local.set(data); Warning: This can break your settings if not done correctly. I recommend saving your container data beforehand. I hope this helps! Vexi