Change Case oleh Janghou

Let you UPPERCASE, lowercase or tOGGLE any selection of text in an input or textarea field by choosing a Change Case item in your context menu. Since 3.10 it can also correct multiple spaces.

Permissions:
The Access your data for all websites permission is needed, otherwise it won't work on things like Disqus. But this extension does not access data on pages by default.

The extension only accesses the content of a page (to change case) in an active tab after you activate the extension with the context menu, so I do think that the activeTab permission should be the right permission.

Use "activeTab" rather than "tabs" and host permissions.

I'm one of the few:
Bug: 1448129 Status: RESOLVED WONTFIX

Changelog
3.16
- fixed capitalizing WORD -> Word
3.14
- fixed capitalizing spanish words like: !hola! ¿qué tal?
- fixed capitalizing `lonely` words on line
3.12
- fixed typo
3.10
- added feature correct double spaces
- fixed multi-line bug