The discussion centers around the use of the Google Firefox toolbar spell checker for forms and its effectiveness in checking spelling in forums. Users express their experiences, noting that the spell check feature in the toolbar works well for general use, reducing the need to copy and paste text into other applications like MS Word for spell checking. However, some participants highlight limitations, such as the inability to scan entire texts for unnoticed mistakes and issues with specific phrases that the spell checker fails to recognize. One user mentions a recent switch to a new computer that lacks a browser spell check, leading to potential misspellings in their posts. Overall, while the Google spell checker is appreciated for convenience, its limitations in context and accuracy are acknowledged.