Auto-Mark Folder Read 1.7.0
by Silvester2584
New messages can be automatically marked as read in common folders (e.g. spam, trash, drafts, templates).
For TB up to 121, please use the latest v1.5.* add-on version.
For TB as of 122, please use add-on version 1.6 or higher.
About this Add-on
The common folders to be taken into account can be selected in the options panel of the add-on. Pre-selected are the folders: spam, trash, drafts and templates.
In the options panel it is configurable whether messages in subfolders should also be marked as read or whether subfolders should be left as they are.
Why might this extension be useful?
IMAP mail providers like gmx automatically move emails to the spam folder, and those emails remain there with the status "unread". Thunderbird displays the accumulated number of ALL unread emails for an account next to the account name. But unread emails, e.g. in the spam folder, are not relevant to most users. It may therefore make sense to automatically mark all emails in the spam folder as "read".
I use this add-on myself, and therefore it will remain compatible with future Thunderbird versions.
Note:
If you are using Thunderbird until version 121 then use the latest v1.5.* release of the add-on.
For Thunderbird 122 and above use the add-on version 1.6 or later.