Legacy browser support extension for Windows | Firefox for Enterprise Help

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"main-menu.aaq-step-2", "link_detail": "firefox-private-network-vpn" }'> Mozilla VPN </a> </li> <li> <a href="/en-US/questions/new/pocket" data-event-name="link_click" data-event-parameters='{ "link_name": "main-menu.aaq-step-2", "link_detail": "pocket" }'> Pocket </a> </li> <li> <a class="color-link" href="/en-US/questions/new" data-event-name="link_click" data-event-parameters='{ "link_name": "main-menu.aaq-step-1", "link_detail": "view-all" }'> View all </a> </li> </ul> </section> </div> </div> </div> </div> </li> <li class="mzp-c-menu-category"> <a class="mzp-c-menu-title sumo-nav--link" href="/en-US/contribute" data-event-name="link_click" data-event-parameters='{"link_name": "main-menu.contribute.contribute-home"}'> Contribute </a> </li> </ul> </nav> </div> </div> <div class="mzp-c-navigation-items sumo-nav--list-wrap-right logged-out" id="profile-navigation"> <div class="mzp-c-navigation-menu"> <nav class="mzp-c-menu mzp-is-basic"> <ul class="mzp-c-menu-category-list 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Once defined through policy or the Enterprise mode site list, users can automatically open a predefined set of URLs in Internet Explorer and switch back to Firefox when navigating to a different domain. To ensure that the Legacy Browser Support extension will work properly, run the dedicated installer, install the extension and install the templates. </p> <h1 id="w_configure-firefox-to-install-the-legacy-browser-support-extension">Configure Firefox to install the legacy browser support extension</h1> <ul><li> Details on how to install extensions can be found <a href="https://github.com/mozilla/policy-templates#extensions">here</a>. </li><li> The Legacy Browser Support extension can be found <a href="https://addons.mozilla.org/en-US/firefox/addon/legacy-browser-support/">here</a>. </li></ul> <p></p><div class="note">Please reach out to the add-on developer directly, if you need help with a specific add-on.</div> <p></p> <h1 id="w_run-the-dedicated-installer">Run the dedicated installer</h1> <p>Use your software management tool to run the dedicated Legacy Browser Support MSI installer. 32 (<a href="https://github.com/mozilla/legacy-browser-support/releases/download/v1.0/setup.msi">link</a>) and 64 bit (<a href="https://github.com/mozilla/legacy-browser-support/releases/download/v1.0/setup64.msi">link</a>) versions of the installer are available. </p> <h1 id="w_install-the-templates-and-provision-the-ie-enterprise-mode-site-list-optional">Install the templates and provision the IE Enterprise Mode Site list (optional)</h1> <p>Instructions regarding how to provision the IE Enterprise Mode Site list can be found <a href="https://docs.microsoft.com/en-us/internet-explorer/ie11-deploy-guide/turn-on-enterprise-mode-and-use-a-site-list">here</a>. </p><p>The ADMX templates for Firefox are available for download <a href="https://github.com/mozilla/policy-templates/releases">here</a>. Please note that ADMX templates should be added to the X:\Windows\PolicyDefinitions directory and customized per your deployment configuration: </p> <ol><li> List the URLs that should be opened in the alternative browser. </li><li> Customize the behavior of the extension: <dl><dt><ul><li> <strong>Alternative Browser Arguments</strong>: none </li></ul> </dt></dl> <dl><dt> Use this to enter command line parameters if necessary. See the documentation included with the ADM templates for more information. </dt></dl> <dl><dt><ul><li> <strong>Alternative Browser Path</strong>: ${ie} </li><li> <strong>Firefox Arguments</strong>: none </li><li> <strong>Firefox Path</strong>: ${firefox} </li><li> <strong>Hosts to Open In Either Browser</strong>: none </li></ul> </dt></dl> <dl><dt> Specify a URL greylist by including the URLs that shouldn’t exclusively open in one browser or the other, such as a Single sign-on page, if necessary. For more information, see the documentation included with the ADM templates. </dt></dl> <dl><dt><ul><li> <strong>Hosts to Open In the Alternative Browser</strong>: enter the URLs to redirect. </li></ul> </dt></dl> </li></ol> <p><strong>Here are some notes that you should reference</strong>: </p> <ul><li> The URLs you specify in the policy take precedence over the Internet Explorer site list if you provision URLs through both. </li><li> The latest information on our policies and more details about specific policies are available in the README within our GitHub repository: <a href="https://github.com/mozilla/policy-templates/blob/master/README.md">https://github.com/mozilla/policy-templates/blob/master/README.md</a>. </li><li> Reference the following Github repository: <a href="https://github.com/mozilla/legacy-browser-support/releases">https://github.com/mozilla/legacy-browser-support/releases</a>. </li></ul> </section> <p class="share-link"> <br/> Share this article: <a href="https://mzl.la/3BX9TIz">https://mzl.la/3BX9TIz</a> </p> </article> <section id="document-vote-wrapper-narrow-screen" class="sumo-page-section"> </section> <section id="doc-contributors" class="document--contributors sumo-page-section"> <p class="help-title text-body-md">These fine people helped write this article:</p> <div class="document--contributors-list text-body-xs"><a class="user secondary-color" rel="nofollow" href="/en-US/user/kelimutu/">Kiki</a>, <a class="user secondary-color" rel="nofollow" href="/en-US/user/heyjoni/">Joni</a>, <a class="user secondary-color" rel="nofollow" href="/en-US/user/Lamont287/">Lamont Gardenhire</a></div> </section> <section class="sumo-page-section"> <div class="card card--callout is-full-width has-moz-headings"> <div class="card--callout-wrap-narrow"> <img class="card--feature-img" src="https://assets-prod.sumo.prod.webservices.mozgcp.net/static/volunteer.a3be8d331849774b.png" alt="Illustration of hands" /> <div class="card--details"> <h3 class="card--title">Volunteer</h3> <p class="card--desc">Grow and share your expertise with others. 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