Personalize & test emails with Litmus—wherever you build.

Latest Version

Version
1.2.0
Update
November 26, 2024
Size
5.54MiB
Developer
litmus.com
Category
Users
4,000+
Rating
4.53333 ★
Manifest Version
3
Web Store Status
Languages Support
English (United States)
See more
Permissions
Tabs
Scripting
Storage
Cookies
ClipboardWrite
Offscreen
File://*
Http://localhost/*
*://litmus.localhost/*
Http://127.0.0.1/*
*://*.adobe-campaign.com/*
*://experience.adobe.com/*
*://*.mailchimp.com/*
*://*.campaignmonitor.com/*
*://*.createsend.com/*
*://*.exacttarget.com/*
*://*.pardot.com/*
*://cloud.goacoustic.com/*
*://*.marketodesigner.com/*
*://*.marketingcloudapps.com/*
*://*.exacttarget.com/cloud/#*
*://members.exacttarget.com/*
*://members.s1.exacttarget.com/Content/Email/*
*://members.s2.exacttarget.com/Content/Email/*
*://members.s3.exacttarget.com/Content/Email/*
*://members.s4.exacttarget.com/Content/Email/*
*://members.s5.exacttarget.com/Content/Email/*
*://members.s6.exacttarget.com/Content/Email/*
*://members.s7.exacttarget.com/Content/Email/*
*://members.s8.exacttarget.com/Content/Email/*
*://members.s9.exacttarget.com/Content/Email/*
*://members.s10.exacttarget.com/Content/Email/*
*://members.s11.exacttarget.com/Content/Email/*
*://members.s12.exacttarget.com/Content/Email/*
*://members.s13.exacttarget.com/Content/Email/*
*://members.s14.exacttarget.com/Content/Email/*
*://members.s15.exacttarget.com/Content/Email/*
*://*.eloqua.com/*
*://*.eloquaeditors.com/*
*://user-content.s1.sfmc-content.com/*
*://user-content.s2.sfmc-content.com/*
*://user-content.s3.sfmc-content.com/*
*://user-content.s4.sfmc-content.com/*
*://user-content.s5.sfmc-content.com/*
*://user-content.s6.sfmc-content.com/*
*://user-content.s7.sfmc-content.com/*
*://user-content.s8.sfmc-content.com/*
*://user-content.s9.sfmc-content.com/*
*://user-content.s10.sfmc-content.com/*
*://user-content.s11.sfmc-content.com/*
*://user-content.s12.sfmc-content.com/*
*://user-content.s13.sfmc-content.com/*
*://user-content.s14.sfmc-content.com/*
*://user-content.s15.sfmc-content.com/*
*://*.klaviyo.com/*
See more

Litmus Extension

Whether you’re using a local editor or your email service provider’s email editor to create emails, Litmus Extension lets you personalize, preview, troubleshoot, and optimize your email right where you build, saving you time and helping you boost email accuracy & engagement.

You can download the Litmus Extension for free, but it requires a paid Litmus account for full access to pre-send email testing and personalization.

Learn more and sign up: litmus.com/extension
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "Litmus", "version": "1.2.0", "minimum_chrome_version": "124", "description": "Personalize & test emails with Litmus\u2014wherever you build.", "author": "Litmus ", "permissions": [ "tabs", "scripting", "storage", "cookies", "clipboardWrite", "offscreen", "file://*", "http://localhost/*", "*://litmus.localhost/*", "http://127.0.0.1/*", "*://*.adobe-campaign.com/*", "*://experience.adobe.com/*", "*://*.mailchimp.com/*", "*://*.campaignmonitor.com/*", "*://*.createsend.com/*", "*://*.exacttarget.com/*", "*://*.pardot.com/*", "*://cloud.goacoustic.com/*", "*://*.marketodesigner.com/*", "*://*.marketingcloudapps.com/*", "*://*.exacttarget.com/cloud/#*", "*://members.exacttarget.com/*", "*://members.s1.exacttarget.com/Content/Email/*", "*://members.s2.exacttarget.com/Content/Email/*", "*://members.s3.exacttarget.com/Content/Email/*", "*://members.s4.exacttarget.com/Content/Email/*", "*://members.s5.exacttarget.com/Content/Email/*", "*://members.s6.exacttarget.com/Content/Email/*", "*://members.s7.exacttarget.com/Content/Email/*", "*://members.s8.exacttarget.com/Content/Email/*", "*://members.s9.exacttarget.com/Content/Email/*", "*://members.s10.exacttarget.com/Content/Email/*", "*://members.s11.exacttarget.com/Content/Email/*", "*://members.s12.exacttarget.com/Content/Email/*", "*://members.s13.exacttarget.com/Content/Email/*", "*://members.s14.exacttarget.com/Content/Email/*", "*://members.s15.exacttarget.com/Content/Email/*", "*://*.eloqua.com/*", "*://*.eloquaeditors.com/*", "*://user-content.s1.sfmc-content.com/*", "*://user-content.s2.sfmc-content.com/*", "*://user-content.s3.sfmc-content.com/*", "*://user-content.s4.sfmc-content.com/*", "*://user-content.s5.sfmc-content.com/*", "*://user-content.s6.sfmc-content.com/*", "*://user-content.s7.sfmc-content.com/*", "*://user-content.s8.sfmc-content.com/*", "*://user-content.s9.sfmc-content.com/*", "*://user-content.s10.sfmc-content.com/*", "*://user-content.s11.sfmc-content.com/*", "*://user-content.s12.sfmc-content.com/*", "*://user-content.s13.sfmc-content.com/*", "*://user-content.s14.sfmc-content.com/*", "*://user-content.s15.sfmc-content.com/*", "*://*.klaviyo.com/*" ], "icons": { "16": "images/icon16.png", "32": "images/icon32.png", "48": "images/icon48.png", "128": "images/icon128.png" }, "action": { "default_icon": { "19": "images/icon19.png", "38": "images/icon38.png" }, "default_title": "Litmus" }, "content_security_policy": { "extension_pages": "script-src 'self'; object-src 'self';", "sandbox": "sandbox allow-scripts allow-forms allow-popups allow-modals; script-src 'self' 'unsafe-inline' 'unsafe-eval'; child-src 'self';" }, "content_scripts": [ { "matches": [ "file://*", "http://localhost/*.htm", "http://localhost/*.html", "http://127.0.0.1/*.html", "*://*.adobe-campaign.com/*", "*://experience.adobe.com/*", "*://*.mailchimp.com/*", "*://*.campaignmonitor.com/*", "*://*.createsend.com/*", "*://*.exacttarget.com/*", "*://*.pardot.com/*", "*://*.responsys.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.rsys8.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.rsys9.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.responsys.ocs.oraclecloud.com/emd/c/campaigndesigner/framework/page/launch*", "*://*.marketodesigner.com/*", "*://*.exacttarget.com/cloud/#*", "*://*.marketingcloudapps.com/*", "*://*.eloqua.com/*", "*://cloud.goacoustic.com/*", "*://*.klaviyo.com/*" ], "include_globs": [ "file://*", "http://127.0.0.1/*.html", "http://127.0.0.1:*/*.html", "http://localhost/*.htm", "http://localhost/*.html", "http://localhost:*/*.htm", "http://localhost:*/*.html", "*://*.adobe-campaign.com/*", "*://experience.adobe.com/*", "*://*.createsend.com/*", "*://*.mailchimp.com/campaigns/wizard/recipients*", "*://*.mailchimp.com/campaigns/wizard/setup*", "*://*.mailchimp.com/campaigns/wizard/template*", "*://*.mailchimp.com/campaigns/wizard/html-paste*", "*://*.mailchimp.com/campaigns/wizard/neapolitan*", "*://*.mailchimp.com/campaigns/wizard/confirm*", "*://*.mailchimp.com/templates/edit*", "*://*.mailchimp.com/templates/design*", "*://*.exacttarget.com/cloud/#app/Email/*", "*://*.exacttarget.com/cloud/#app/Campaigns/*", "*://*.pardot.com/email/*", "*://*.responsys.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.rsys8.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.rsys9.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.responsys.ocs.oraclecloud.com/emd/c/campaigndesigner/framework/page/launch*", "*://*.marketodesigner.com/*", "*://*.exacttarget.com/cloud/#*", "*://*.marketingcloudapps.com/*", "*://*.eloqua.com/*", "*://cloud.goacoustic.com/*", "*://*.klaviyo.com/*" ], "css": [ "css/iframe.css" ], "js": [ "inject.js" ], "run_at": "document_end" }, { "matches": [ "" ], "exclude_globs": [ "file://*", "http://localhost/*.htm", "http://localhost/*.html", "http://localhost:*/*.htm", "http://localhost:*/*.html", "http://127.0.0.1:*/*.html", "*://*.adobe-campaign.com/*", "*://experience.adobe.com/*", "*://*.campaignmonitor.com/*", "*://*.pardot.com/*", "*://*.createsend.com/*", "*://*.mailchimp.com/campaigns/wizard/recipients*", "*://*.mailchimp.com/campaigns/wizard/setup*", "*://*.mailchimp.com/campaigns/wizard/template*", "*://*.mailchimp.com/campaigns/wizard/html-paste*", "*://*.mailchimp.com/campaigns/wizard/neapolitan*", "*://*.mailchimp.com/campaigns/wizard/confirm*", "*://*.mailchimp.com/templates/edit*", "*://*.mailchimp.com/templates/design*", "*://*.exacttarget.com/cloud/#app/Email/*", "*://*.exacttarget.com/cloud/#app/Campaigns/*", "*://cloud.goacoustic.com/*", "*://*.pardot.com/email/*", "*://*.responsys.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.rsys8.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.rsys9.net/emd/c/campaigndesigner/framework/page/launch*", "*://*.responsys.ocs.oraclecloud.com/emd/c/campaigndesigner/framework/page/launch*", "*://*.marketodesigner.com/*", "*://*.exacttarget.com/cloud/#*", "*://*.marketingcloudapps.com/*", "*://*.eloqua.com/*", "*://*.klaviyo.com/*" ], "css": [ "css/iframe.css" ], "js": [ "nonESPInject.js" ], "run_at": "document_end" }, { "matches": ["*://*.adobe-campaign.com/*/acritePreview.jssp"], "js": ["adobe_campaign_email_designer_preview.js"], "all_frames": true, "run_at": "document_end" }, { "matches": ["*://*.campaign.adobe.com/*/acriteIndex.jssp"], "js": ["adobe_campaign_email_designer_subject_line.js"], "all_frames": true, "run_at": "document_end" }, { "matches": [ "*://*.mailchimp.com/*" ], "js": [ "mailchimpInject.js" ], "run_at": "document_end" }, { "matches": [ "*://*.goacoustic.com/ux/*" ], "js": [ "ibm-iframe.js" ], "all_frames": true, "run_at": "document_end" }, { "matches": [ "*://email-app.marketingcloudapps.com/*", "*://content-builder.marketingcloudapps.com/*", "*://*.exacttarget.com/cloud/tools/SSO.aspx?appId=*", "*://*.marketingcloudapps.com/*" ], "js": [ "exacttarget-dashboard.js" ], "all_frames": true, "run_at": "document_end" }, { "matches": [ "*://user-content.s1.sfmc-content.com/*", "*://user-content.s2.sfmc-content.com/*", "*://user-content.s3.sfmc-content.com/*", "*://user-content.s4.sfmc-content.com/*", "*://user-content.s5.sfmc-content.com/*", "*://user-content.s6.sfmc-content.com/*", "*://user-content.s7.sfmc-content.com/*", "*://user-content.s8.sfmc-content.com/*", "*://user-content.s9.sfmc-content.com/*", "*://user-content.s10.sfmc-content.com/*", "*://user-content.s11.sfmc-content.com/*", "*://user-content.s12.sfmc-content.com/*", "*://user-content.s13.sfmc-content.com/*", "*://user-content.s14.sfmc-content.com/*", "*://user-content.s15.sfmc-content.com/*" ], "js": [ "exacttarget-preview-and-test.js" ], "all_frames": true, "run_at": "document_end" }, { "matches": [ "*://*.eloquaeditors.com/editor.aspx*" ], "js": [ "eloqua.js" ], "all_frames": true, "run_at": "document_end" }, { "matches": ["*://*.pardot.com/email/*"], "js": ["pardot.js"], "all_frames": true, "run_at": "document_end" }, { "matches": ["*://*.pardot.com/email/*previewSource*"], "js": ["pardot-preview.js"], "all_frames": true, "run_at": "document_end" } ], "host_permissions": [ "" ], "web_accessible_resources": [ { "resources": [ "globals.js", "startpage/index.html", "sidebar/index.html", "dashboard/index.html", "css/iframe.css", "css/litmusBeacon.css", "newrelic/nr-spa-1044.min.js", "inject.js", "nativeMessages.js", "reloadMessages.js", "images/draggable-icon.png", "images/close-modal.png", "images/arrow-left.png", "images/arrow-right.png", "images/preview-blur-large.jpg", "images/lock-icon.png", "images/icon128.png", "images/icon128-gray.png", "images/beacon.png", "images/allow-access-graphic.png", "fonts/*" ], "matches": ["http://*/*", "https://*/*", "file://*/*"] } ], "background": { "service_worker": "background.js" }}
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How to download and manually install Litmus extension for Chrome

Looking for a way to install Litmus extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Litmus extensions manually, this article outlines two simple methods to effortlessly install Litmus extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Litmus extension and manually install through Drag &Drop

If you ever need to manually install a Litmus extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Litmus Extension by clicking the "Download CRX" button on the website.

Look for the Litmus extension you wish to install. Go to the website and download the Litmus extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Litmus extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Litmus extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Litmus extension for Chrome and install in Developer Mode

This is another method to install Litmus extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Litmus extension file

Select and download the Litmus extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Litmus extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Litmus extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Litmus extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Litmus extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Jimmy Mona (ID: 0000009410e9a238) Voted 3 ★ - Updated 04/11/2018 The tests show up fine when using the extension, but when I test the same emails on the litmus website they look different and there are bugs I need to work out, so it defeats the purpose of the extension. It seems to have somethings to do with eloqua field merges not rendering properly. So may only affect people using Eloqua

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Charlton S (ID: 000000e9a2ef9fa0) Voted 3 ★ - Updated 11/13/2017 A bit buggy. Having issues with the app not letting me scroll up after I scroll all the way down. I have to either refresh my entire browser session or kill the app and restart for it to work again. The scrolling feature also gets stuck at the top after I run a litmus test. I'll stick to the normal web app for now.

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Kevin Cassidy (ID: 0000008a7e16b7d7) Voted 2 ★ - Updated 08/24/2017 Nice app! But there are a huge amount of Console Errors. They need to be fixed before I could condone it being used by my team.

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Veronica Braxton (ID: 00000012b5d033aa) Voted 5 ★ - Updated 08/23/2017 Just simply, amazing. I Love Litmus!

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Daniel Brown (ID: 000000bb28fe7f7a) Voted 5 ★ - Updated 01/13/2017 Ever wished you could code an email in your favorite text editor, preview it in your browser of choice and then with the click of a button check your email’s rendering in up to 70 email clients? Well, good news! Litmus' new browser extension will allow you to do exactly that and it’s as magical and useful as it sounds. Litmus has long been an essential tool in my development toolbox and now I can’t imagine living without their browser extension.