browser/components/resistfingerprinting/test/browser/browser_block_mozAddonManager.js


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/**
 * Bug 1384330 - A test case for making sure the navigator.mozAddonManager will
 *   be blocked when pref 'privacy.resistFingerprinting.block_mozAddonManager' is true.
 */

const HTTPS_TEST_PATH =
  "https://example.com/browser/browser/" +
  "components/resistfingerprinting/test/browser/";

add_task(async function test() {
  await SpecialPowers.pushPrefEnv({
    set: [["extensions.webapi.testing", true]],
  });

  for (let pref of [false, true]) {
    await SpecialPowers.pushPrefEnv({
      set: [["privacy.resistFingerprinting.block_mozAddonManager", pref]],
    });

    let tab = await BrowserTestUtils.openNewForegroundTab(
      gBrowser,
      HTTPS_TEST_PATH + "file_dummy.html"
    );

    await SpecialPowers.spawn(tab.linkedBrowser, [pref], function (aPref) {
      if (aPref) {
        is(
          content.navigator.mozAddonManager,
          undefined,
          "The navigator.mozAddonManager should not exist when the pref is on."
        );
      } else {
        ok(
          content.navigator.mozAddonManager,
          "The navigator.mozAddonManager should exist when the pref is off."
        );
      }
    });

    BrowserTestUtils.removeTab(tab);
    await SpecialPowers.popPrefEnv();
  }
});