Only signed extensions can be permantly installed in Firefox (unless you are using <em>Firefox Developer Edition</em>). To sign the build, proceed as described in [Getting started with web-ext](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Getting_started_with_web-ext).
You can keep the extension settings between builds by providing a stable `APPLICATION_ID` between builds. You can set an `APPLICATION_ID` in a file named `.env` or at build time as follows:
| service_key | `string`— Unique identifier for the service |
| service_name | `string`— Must be one of the registered services `trello`, `jira`, `asana`, `wunderlist`, `github` or `youtrack` |
| urlPatterns | `string` \| `RegEx`— A valid URL pattern or regular expression, as described in the [url-pattern](https://www.npmjs.com/package/url-pattern) package. `:host:` will be replaced with the configured host before applying the pattern (can be configured in the settings if `allowHostOverride` is true. |
| queryParams | `Object`— The object value is the name of the query parameter and the key the property it will available on, e.g. the value of the query parameter `currentList` will be available under `projectId`. Matches in `urlPatterns` have precedence over matches in `queryParams`. |
| description | `undefined` \| `string` \| `function`— The default description of the service. If it is a function, it will receive `window.document`, the current `service` and an object with the URL `matches` as arguments, and the return value set as the default description. |
| projectId | `undefined` \| `string` \| `function`— The pre-selected project of the service matching the MOCO project identifier. If it is a function, it will receive `window.document`, the current `service` and an object with the URL `matches` as arguments, and must return the MOCO project identifier or `undefined`. |