Update index.md | release >= 109 supports top & left parameters for w…

…indows.create (mdn#36588)

* Update index.md | release 109 supports top & left parameters for windows.create.

* Update files/en-us/mozilla/firefox/releases/109/index.md

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

files/en-us/mozilla/firefox/releases/109/index.md

@@ -73,6 +73,7 @@ No notable changes.
 - The property `secretKeyLength` has been added to {{WebExtAPIRef("webRequest.SecurityInfo")}}. This property provides the length in bits of the secret key in the security properties of a web request ([Firefox bug 1778473](https://bugzil.la/1778473)).
 - With the introduction of the [extensions button](https://support.mozilla.org/en-US/kb/extensions-button), the default value of `default_area` in the [`action`](/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/action) and [`browser_action`](/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/browser_action) manifest keys has changed from `"navbar"` to `"menupanel"` ([Firefox bug 1799947](https://bugzil.la/1799947)).
 - Support for {{WebExtAPIRef("omnibox.onDeleteSuggestion")}} and the `deletable` property in {{WebExtAPIRef("omnibox.SuggestResult")}}, enabling extensions to react to a user deleting an address bar search result ([Firefox bug 1799947](https://bugzil.la/1799947)).
+- Support for the <code>top</code> and <code>left</code> parameters to determine positioning of `panel` or `popup` window using {{WebExtAPIRef("windows.create()")}} ([Firefox bug 1271047](https://bugzil.la/1271047)).
 
 ## Older versions