permissions.contains()

Checks whether the extension has specific permissions.

Syntax

let getContains = browser.permissions.contains(  permissions                // Permissions object)

Parameters

permissions: Apermissions.Permissions object.

APromise fulfilled withtrue if the extension has all the permissions listed in thepermissions argument, orfalse otherwise. For host permissions, if the extension's permissionspattern-match the permissions listed inorigins, then they are considered to match.

Examples

// Extension permissions are:// "webRequest", "tabs", "*://*.mozilla.org/*", and "healthInfo" in "data_collection"let testPermissions1 = {  origins: ["*://mozilla.org/"],  permissions: ["tabs"],  data_collection: ["healthInfo"],};const testResult1 = await browser.permissions.contains(testPermissions1);console.log(testResult1); // truelet testPermissions2 = {  origins: ["*://mozilla.org/"],  permissions: ["tabs", "alarms"],};const testResult2 = await browser.permissions.contains(testPermissions2);console.log(testResult2); // false, "alarms" doesn't matchlet testPermissions3 = {  origins: ["https://developer.mozilla.org/"],  permissions: ["tabs", "webRequest"],};const testResult3 = await browser.permissions.contains(testPermissions3);console.log(testResult3); // true: "https://developer.mozilla.org/", matches: "*://*.mozilla.org/*"let testPermissions4 = {  origins: ["https://example.org/"],};const testResult4 = await browser.permissions.contains(testPermissions4);console.log(testResult4); // false: "https://example.org/", `origins` doesn't matchlet testPermissions5 = {  data_collection: ["searchTerms"],};const testResult5 = await browser.permissions.contains(testPermissions4);console.log(testResult5); // false: "searchTerms" doesn't match data type in `data_collection`