Sorry to hear about this problem, and thank you for the reports. It's a lot to digest, especially because the 16 reports have crashes at different places - judging from their crash signatures. I think the most common signature, with 3 reports, is this one:

https://crash-stats.mozilla.org/signature/?product=Firefox&signature=js%3A%3AInternalBarrierMethods%3CT%3E%3A%3AisMarkable

If you re-run the filter for a longer period of time, this goes back quite a ways, so it's hard to pin the problem on a specific change in Firefox or a popular website or add-on.

General Suggestions:

(1) Could you relaunch Firefox in its Troubleshoot Mode and see whether it is any less crashy? In that mode, Firefox temporarily deactivates extensions, hardware acceleration, the JavaScript compilers, and any userChrome.css/userContent.css files to help you assess whether these are causing the problem.

If Firefox is running:

You can restart Firefox in Troubleshoot Mode using either:

• "3-bar" menu button > Help > Troubleshoot Mode...
• (menu bar) Help menu > Troubleshoot Mode...

and OK the restart. A small dialog should appear. Click the Open button.

If Firefox is not running:

Hold down the Shift key when starting Firefox. (On Mac, hold down the option/alt key instead of the Shift key.) A small dialog should appear. Click the Open button.

Note: Don't use the Refresh without first reviewing this article to understand what will be deleted: Refresh Firefox - reset add-ons and settings.

Any improvement?

Ref. Diagnose Firefox issues using Troubleshoot Mode

(2) Would you mind running some memory and disk diagnostics to check for a hardware problem?

Before submitting the reports I already ran the refresh I apologize for not including that in my initial statement. I think I ran the refresh prior to 3:50pm so all the crash reports that are after that should be after using the refresh tool.

I could keep it in troubleshoot mode too but I will say after the refresh (and the initial large amount of tab crashing) it has been *less* frequent which is a plus but I'll accumulate a few more crash reports over the next day or so and re-up reports I find.

If I don't have crashing I'll try to reply stating as much but if you don't hear from me a week down the line then I'm probably good.

Thank you for the help.