Not a FF End user forum to help with your Spam mail. That is between you and your email provider to resolve. And sending them email helps them send you more - you fallen for the oldest trap they send fake email and you responded and now your email is a "Gold mine" for them.

Since Firefox is not a Email program what are you getting the spam in ?

No idea who, they are but replying to their email in any form confirms the email address is active and causes more spam as does show images if they are online. You can lookup their whois info here : https://ca.godaddy.com/whois?domain=rootlevelmedia.com

You can use this site provided your program/ISP gets the full raw headers https://www.spamcop.net/ register for a free account, if want to buy, 10bucks will go for a few years. The also have free block lists if your program uses block lists.

Without knowing what you are using for email, can not help further. If you are using Thunderbird you should be posting here : https://support.mozilla.org/en-US/products/thunderbird

Please let us know if this solved your issue or if need further assistance.

Separate Issue; Your System Details shows;

Installed Plug-ins

Shockwave Flash 27.0 r0 Shockwave Flash 29.0 r0
Having more than one version of a program may cause issues. You must remove the older programs. Then get the current full installer.

Flash: Grab the uninstaller from here:

http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html Uninstall Flash Player | Windows

http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html Uninstall Flash Player | Mac

Then reinstall the latest version.

Note: Windows users should download the active_x for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the active_x.

Flash Player Version 29.0.0.113

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only>

See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

Some e-mail providers have the option to sort incoming mail. Contact your e-mail provider for help.

Go here and register for protection for your e-mail and phones; https://www.donotcall.gov/ The National Do Not Call Registry