If, like me, your company’s insistence on using Sharepoint as an Intranet tool contributes to rapid neurons death, there is as least a glimmer of hope: you can still use Firefox without being punished by having to type raw HTML code when editing a page (Sharepoint, unsurprisingly, only likes IE)
Simple steps to use your own rich-text editor:
Edit SharePoint page
Right-click, select “Open Xinha here!”
Edit! then click [OK]
Now, submit page with all its HTML code. Note: You can edit existing pages as well.