Rated 5 out of 5 stars

per SOCAR el jul. 5, 2026 ·

Great stuff! Exactly what I was looking for. And I agree - this should be a part of Thunderbird from the start. Not sure why original TB team cant even do a simple collapse to a side button or something. But this extension sorts it out.

One suggestion - It took me some seconds to figure out where the button to action the extension is (on top title bar) so a picture with arrow on the extension page would be neat

Rated 5 out of 5 stars

per ykad el nov. 3, 2025 ·

Nice and useful. It would be even better if the button text could be shorten to "Folder Pane".

This review is for a previous version of the add-on (1.0). 

Rated 5 out of 5 stars

per Firefox user c54c68 el set. 30, 2025 ·

Addon works well.
You cannot really see the icon in dark mode. Perhaps add a bright background to it?

This review is for a previous version of the add-on (1.0). 

Rated 4 out of 5 stars

per Tangoldd el oct. 5, 2024 ·

CSS to hide button text in userChrome.css:

.extension-action > div:nth-child(1) > button:nth-child(1) {
font-size: 0 !important;
}

This review is for a previous version of the add-on (1.0). 

Rated 4 out of 5 stars

per Wylbur el set. 21, 2024 ·

This is a well crafted addon and does exactly what is needed. One recommendation would be to allow for renaming the button text - Toggle Folder Pane is a little long for a button. If you can add that as a setting this would be a 5 star addon!

This review is for a previous version of the add-on (1.0). 

Rated 5 out of 5 stars

per Ray el jul. 29, 2024 ·

Like this a lot. Just wish the button was incorporated into the Spaces Toolbar instead.

This review is for a previous version of the add-on (1.0).