Litmus icon

Litmus

by litmus-plugin-admins

v1.2.1 Updated Jul 23, 2025 5.55MiB
CWS
4K
Users
★ 4.47
40 reviews
#11748
of 207.1K
developer
#987 of 18.1K
⚠️Requests 1 sensitive permission

Description

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
Litmus screenshot 1Litmus screenshot 2Litmus screenshot 3Litmus screenshot 4Litmus screenshot 5

Reviews (6 cached)

★☆☆☆☆2024-09-03
Gregg Joseph

Doesn't work with Pardot/Account Engagement even though it says it does on my Plan benefits...

★☆☆☆☆2024-05-21
Chris Low

was a big fan, until they stopped supporting images loading from local source. Now the desktop app is virtually useless.

★☆☆☆☆2024-04-16
Arpit Dalal

Not possible to switch between different lists when testing manually.

★★☆☆☆2017-08-24
Kevin Cassidy

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.

★★★☆☆2018-04-11
Jimmy Mona

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

★★★☆☆2017-11-13
Charlton S

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.

Permissions (55)

Permissions

clipboardWrite Can write to your clipboard cookies Can read and modify browser cookies offscreen scripting Can inject scripts into web pages storage Can store data locally in your browser tabs Can see your open tabs and their URLs

Host Permissions

*://*.adobe-campaign.com/* Can access adobe-campaign.com websites *://*.campaignmonitor.com/* Can access campaignmonitor.com websites *://*.createsend.com/* Can access createsend.com websites *://*.eloqua.com/* Can access eloqua.com websites *://*.eloquaeditors.com/* Can access eloquaeditors.com websites *://*.exacttarget.com/* Can access exacttarget.com websites *://*.exacttarget.com/cloud/#* Can access exacttarget.com websites *://*.klaviyo.com/* Can access klaviyo.com websites *://*.mailchimp.com/* Can access mailchimp.com websites *://*.marketingcloudapps.com/* Can access marketingcloudapps.com websites *://*.marketodesigner.com/* Can access marketodesigner.com websites *://*.pardot.com/* Can access pardot.com websites *://cloud.goacoustic.com/* Can access cloud.goacoustic.com websites *://experience.adobe.com/* Can access experience.adobe.com websites *://litmus.localhost/* Can access litmus.localhost websites *://members.exacttarget.com/* Can access members.exacttarget.com websites *://members.s1.exacttarget.com/Content/Email/* Can access members.s1.exacttarget.com websites *://members.s10.exacttarget.com/Content/Email/* Can access members.s10.exacttarget.com websites *://members.s11.exacttarget.com/Content/Email/* Can access members.s11.exacttarget.com websites *://members.s12.exacttarget.com/Content/Email/* Can access members.s12.exacttarget.com websites *://members.s13.exacttarget.com/Content/Email/* Can access members.s13.exacttarget.com websites *://members.s14.exacttarget.com/Content/Email/* Can access members.s14.exacttarget.com websites *://members.s15.exacttarget.com/Content/Email/* Can access members.s15.exacttarget.com websites *://members.s2.exacttarget.com/Content/Email/* Can access members.s2.exacttarget.com websites *://members.s3.exacttarget.com/Content/Email/* Can access members.s3.exacttarget.com websites *://members.s4.exacttarget.com/Content/Email/* Can access members.s4.exacttarget.com websites *://members.s5.exacttarget.com/Content/Email/* Can access members.s5.exacttarget.com websites *://members.s6.exacttarget.com/Content/Email/* Can access members.s6.exacttarget.com websites *://members.s7.exacttarget.com/Content/Email/* Can access members.s7.exacttarget.com websites *://members.s8.exacttarget.com/Content/Email/* Can access members.s8.exacttarget.com websites *://members.s9.exacttarget.com/Content/Email/* Can access members.s9.exacttarget.com websites *://user-content.s1.sfmc-content.com/* Can access user-content.s1.sfmc-content.com websites *://user-content.s10.sfmc-content.com/* Can access user-content.s10.sfmc-content.com websites *://user-content.s11.sfmc-content.com/* Can access user-content.s11.sfmc-content.com websites *://user-content.s12.sfmc-content.com/* Can access user-content.s12.sfmc-content.com websites *://user-content.s13.sfmc-content.com/* Can access user-content.s13.sfmc-content.com websites *://user-content.s14.sfmc-content.com/* Can access user-content.s14.sfmc-content.com websites *://user-content.s15.sfmc-content.com/* Can access user-content.s15.sfmc-content.com websites *://user-content.s2.sfmc-content.com/* Can access user-content.s2.sfmc-content.com websites *://user-content.s3.sfmc-content.com/* Can access user-content.s3.sfmc-content.com websites *://user-content.s4.sfmc-content.com/* Can access user-content.s4.sfmc-content.com websites *://user-content.s5.sfmc-content.com/* Can access user-content.s5.sfmc-content.com websites *://user-content.s6.sfmc-content.com/* Can access user-content.s6.sfmc-content.com websites *://user-content.s7.sfmc-content.com/* Can access user-content.s7.sfmc-content.com websites *://user-content.s8.sfmc-content.com/* Can access user-content.s8.sfmc-content.com websites *://user-content.s9.sfmc-content.com/* Can access user-content.s9.sfmc-content.com websites file://* http://127.0.0.1/* Can access 127.0.0.1 websites http://localhost/* Can access localhost websites

Details

Version 1.2.1
Updated Jul 23, 2025
Size 5.55MiB
First Seen Mar 28, 2026