There is a topic on the forum of joomlacommunity.eu about must have extensions. I'm always interested in finding and using extenions that make my life in Joomla easier so I decided to share these extensions, maybe you like them also.
With Fields Attach you can add fields to an article or category. Examples of these fileds are : Input / Textarea / Select / Image / Gallery Image / File / Checkbox / Date / Radio Button / Youtube Video.
My Content & WorkFlow
Your standard content in Joomla will be completed to real content management. You can edit, publish, unpublish and approve on the frontend of your website.
Joomla Content Editor (JCE)
A highly configurable WYSIWYG editor for Joomla based on TinyMCE. For lots of Joomla users it's a must have extension.
NoNumber Add To Menu
With Add to Menu you can make a menu link to a page from the administrator (page article or category).
NoNumber Advanced Module Manager
With Advanced Module Manager you will get lots of configuration options for your modules. You can control publishing modules on date, user group, language, template, OS or browser.
Create backups or move your Joomla! website and easy to use. You can include or exclude custom maps or database tables.
With the free version you van fix permissions, alter prefixes and protect your administrator directory with a password. But the real power is in the paid version which contains a powerfull web firewall.
Extend the standard functionality of articles with maps, gallery, attachments and related articles.
With SilverAdmin you can edit modules, menus en articles without login in the backend. It also ads a handy side menu in your website if your logged in.
Nonumber Cache Cleaner
When you edit an article you would like to see your changes on the frontpage without manual deleting cache files. With Cache Cleaner you get a quicklink to delete these cache files.
You can remove, depublicise, archive or move content to a different category after a set date.