Extensions that start with the letter M, run on ExpressionEngine 1, are compatible with LG Add-on Updater and are sorted by Entry Date.
This extension change category list view for publish/edit page. You can choose between two UI mode – Line and 2Side.
MX Custom Tabs allows you to create a custom tabs and link them to custom fields.
ExpressionEngine 1.x, ExpressionEngine 2
MX Multi Language Labels is little addon which allow to create multi language labels for custom fields.
MX Custom Field Access allows you to hide/show(from publish page) custom fields on member_group-weblog basis.
The MD Show Expired extension for ExpressionEngine shows and filters expired entries on the Edit page in the EE Control Panel.
Add a Live Search to your ExpressionEngine Control Panel for weblog entries and comments.
Create a markItUp! custom field type in the ExpressionEngine Control Panel. Add per-field button sets, and create custom buttons for advanced use.