Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Thunderbird 78 deletes css media queries

  • 1 antwoord
  • 1 het hierdie probleem
  • 30 views
  • Laaste antwoord deur Wayne Mery

more options

Hello, since a few weeks ago, (since the update of thunderbird to version 78 in particular), we are having problems with the display of emails made with mjml (https://mjml.io/), that did not happen with previous versions. So we have seen, Thunderbird html/css render removes the css with media queries, (the html email code sent and received in thunderbird has the media query, but if I check with the developer tools the code doesn't show up ).

This occurs with media queries that use @media, like "@media (min-width:600px)", "@media only screen and (min-width:600px)"... , if the styles are created with <style type="/text/css" media="(min-width:600px)" >, it displays the emails correctly.

600px is just an example, we have tested other breakpoints.

This is not an addon problem, we have opened Thunderbird in safe mode and it keeps not showing well the emails.

Environment: Windows 10 Pro 64bits Thunderbird 78.1.1 (32-bits)

Hello, since a few weeks ago, (since the update of thunderbird to version 78 in particular), we are having problems with the display of emails made with mjml (https://mjml.io/), that did not happen with previous versions. So we have seen, Thunderbird html/css render removes the css with media queries, (the html email code sent and received in thunderbird has the media query, but if I check with the developer tools the code doesn't show up ). This occurs with media queries that use @media, like "@media (min-width:600px)", "@media only screen and (min-width:600px)"... , if the styles are created with <style type="/text/css" media="(min-width:600px)" >, it displays the emails correctly. 600px is just an example, we have tested other breakpoints. This is not an addon problem, we have opened Thunderbird in safe mode and it keeps not showing well the emails. Environment: Windows 10 Pro 64bits Thunderbird 78.1.1 (32-bits)
Aangehegde skermkiekies

Gewysig op deur aitor.hernandez.m

All Replies (1)