Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

How to change colour of mailbox containing new mail

  • 4 replies
  • 1 has this problem
  • 8 views
  • Last reply by engineer77

more options

I have Thunderbird sort my incoming mail into various mailboxes based on various criteria.

Until recently, when new mail arrived in any box, the title of that box (in the list, left hand pane) turned red - thus making it easy for me to identify which boxes needed my attention. For some reason this has stopped. The incremental number showing the number of unread messages still changes, but the title colour remains black.

Anyone know how to change the behaviour to highlight mailboxes containing new mail please?

Thanks..

I have Thunderbird sort my incoming mail into various mailboxes based on various criteria. Until recently, when new mail arrived in any box, the title of that box (in the list, left hand pane) turned red - thus making it easy for me to identify which boxes needed my attention. For some reason this has stopped. The incremental number showing the number of unread messages still changes, but the title colour remains black. Anyone know how to change the behaviour to highlight mailboxes containing new mail please? Thanks..

Chosen solution

using a theme? or a userchrome file?

Read this answer in context 👍 0

All Replies (4)

more options

Chosen Solution

using a theme? or a userchrome file?

more options

My point is that until recently the behaviour was automatic - it changed the colour of box names as amatter of course. This has now changed, wth all box names being in black whether or not there is new mail in the box.

I receive a lot of mail and being able to quickly distinguish which box had received new mail would make life easier..

I suspect there is a setting within Thunderbird to enable this but I'm damned if I can find it..

more options

well I do not understand the RED. Mine are blue and have been since Thunderbird 3 was released.

I asking if you have add-ons because the process has not changed in Thunderbird, so looking for a cause is the next step.

Does restarting with add-ons from the help menu affect anything?

more options

No... I have no add-ons.

Don't know why mine used to show red - I always assumed it should do :-)

I am using Thunderbird version 31.0 on a Linux system, and until recently new mail has always sent the mailbox title red.. Probably one of these annoyances that will never be solved.

Regards.