Thank you for calling my attention to #1. That's a personal discipline/attention-to-detail issue on my part. The in-post table has been updated to reflect Firefox v26.
For #2, I believe Acrobat is the only product that fits this scenario, and we simply don't provide the v10 and later updates, because Adobe does. However, I see no harm in adding a footnote to that cell explaining that Acrobat v10+ updates are not published in the Patch Manager catalog. Done.
For #3, we don't archive content, so that's not an option; however, posting to a new thread may be an option. The question would be: How frequently? I will look into this option.