For our annual December 31st software archives, here's the list (so far) of
full offline installers for the "main" freeware Windows/Linux web browsers.
(As always, please update so all benefit from this _actionable_ listing!)

*Chromium based* full offline network installers
o *Brave* (Main claim: Tab'able TOR?)(+ tricks for offline installer)
https://brave.com/download/
https://brave-browser.readthedocs.io/en/latest/installing-brave.html#linux
https://play.google.com/store/apps/details?id=com.brave.browser
https://apps.apple.com/us/app/brave-private-web-browser/id1052879175
Platforms: Windows, Linux, Android, & iOS
o *Chrome* (Main claim: Speed?)
https://www.google.com/intl/en/chrome/?standalone=1
https://play.google.com/store/apps/details?id=com.android.chrome
https://apps.apple.com/us/app/chrome/id535886823
Platforms: Windows, Linux, Android, iOS, & src
o *Chromium* (Main claim: Portability?)
http://www.chromium.org/getting-involved/download-chromium
Platforms: Windows, Linux, Mac, & src (not Android or iOS)
o *Epic* (Main claim: Proxy privacy)
https://epicbrowser.com/thank_you.php (+ tricks for offline installer)
Platforms: Windows, & Mac
o *Iron* (Main claim: No data collection)
https://www.srware.net/iron/
https://www.srware.net/en/software_srware_iron_download.php
https://play.google.com/store/apps/details?id=org.iron.srware
Platforms: Windows, Linux, Mac, & Android (no iOS)
o *Opera* (Main claim: Proxy privacy)(+ tricks for offline installer)
https://www.opera.com/computer
https://www.srware.net/iron/
https://apps.apple.com/app/id1411869974
Platforms: Windows, Linux, Mac, Android (no proxy privacy on iOS)
o *Vivaldi* (Main claim: Flexibility & control)
https://vivaldi.com/download/
https://play.google.com/store/apps/details?id=com.vivaldi.browser
Platforms: Windows, Linux, Mac, & Android (no iOS)
o ?what else?

*Mozilla based* full offline network installers
o *Firefox* (Main claim: General purpose?)
https://www.mozilla.org/en-US/firefox/all/
https://play.google.com/store/apps/details?id=org.mozilla.firefox
https://apps.apple.com/us/app/firefox-private-safe-browser/id989804926
Platforms: Windows, Linux, Mac, Android, iOS, & src
o *IceDragon* (Main claim: Speed with FF Compatibility)
https://icedragon.comodo.com/
Platforms: Windows (32 bit only) (not Linux, Mac, Android, or iOS)
o *IceWeasel* (Main claim: Debranded Firefox)
https://sourceforge.net/projects/iw4win/
https://pkgs.org/download/iceweasel
Platforms: Windows, Linux (not Mac, Android, or iOS)
o *PaleMoon* (Main claim: No data collection?)
https://www.palemoon.org/download.shtml
http://linux.palemoon.org/
Platforms: Windows, & Linux, & src (not Mac, Android, or iOS)
o *SeaMonkey* (Main claim: All-in-One functionality?)
https://www.seamonkey-project.org/releases/#2.49.5
Platforms: Windows, Linux, Mac, & src (not Android or iOS)
o *Tor Browser Bundle* (Main claim: Anonymity)
https://www.torproject.org/download/languages/
https://play.google.com/store/apps/details?id=org.torproject.torbrowser
Platforms: Windows, Linux, Mac, Android, & src (no TBB privacy on iOS)
o *WaterFox* (Main claim: No data collection)
https://www.waterfox.net/releases/
Platforms: Windows, Linux, Mac, & Android (not iOS)
o ?what else?

*Microsoft based* full offline network installers
o *Edge* (Main claim: ???)
https://microsoftedgewelcome.microsoft.com/home/en-us/?FORM=MH14YU&wt.mc_id=MH14YU
https://mspoweruser.com/edge-for-linux/
https://www.microsoftedgeinsider.com/en-us/download
Platforms: Windows, Linux & Mac (not Android, or iOS)
o *Internet Explorer* (Main claim: ???)
https://support.microsoft.com/en-us/help/18520/download-internet-explorer-11-offline-installer
Platforms: Windows (not Linux, Mac, Android, or iOS)
o ?what else?

*Apple based* full offline network installers
o *Safari* (Main claim: ???)
https://support.apple.com/downloads/safari
https://support.apple.com/en-us/HT204416
https://play.google.com/store/apps/details?id=org.torproject.torbrowser
Platforms: Windows (outdated), Mac & iOS (not Linux, or Android)

*Independent* full offline network installers
o *FreeGate* (Main claim: anti censorship)
http://www.dit-inc.us/freegate.html
http://us.dongtaiwang.com/loc/download.en.php
Platforms: Windows (not Linux, Mac, Android, or iOS)
o *Polarity* (Main claim: Efficiency due to Trident/Chromium)
https://sourceforge.net/projects/polaritybrowser/files/
https://sourceforge.net/projects/polaritybrowser/files/polaritybrowser.apk
Platforms: Windows & Android (not Linux, Mac, or iOS)
o *UltraSurf* (Main claim: anti censorship)
http://www.ultrasurf.us/download/
http://www.ultrasurf.us/download/u.apk
Platforms: Windows & Android (not Linux, Mac, or iOS)
o ?what else?

*Lightweight browsers* (simple listing)
o *Arora* https://en.wikipedia.org/wiki/Arora_(web_browser)
Platforms: Windows, Linux, Mac
o *Dilio* https://en.wikipedia.org/wiki/Dillo
Platforms: Cygwin, Linux, Mac
o *ELinks* https://en.wikipedia.org/wiki/ELinks
Platforms: Linux, Mac
o *Falkon* https://en.wikipedia.org/wiki/Falkon
Platforms: Windows, Linux
o *K-Meleon* https://en.wikipedia.org/wiki/K-Meleon
Platforms: Windows
o *Links* https://en.wikipedia.org/wiki/Links_(web_browser)
Platforms: Windows, Linux, Mac
o *Lynks* https://en.wikipedia.org/wiki/Lynx_(web_browser)
Platforms: Windows, Linux, Mac
o *Midori* https://en.wikipedia.org/wiki/Midori_(web_browser)
Platforms: Linux, Mac
o *NetSurf* https://en.wikipedia.org/wiki/NetSurf
Platforms: Windows, Linux, Mac
o *Otter* https://en.wikipedia.org/wiki/Otter_Browser
Platforms: Windows, Linux, Mac
o *QtWeb* https://en.wikipedia.org/wiki/QtWeb
Platforms: Windows, Linux, Mac
o *Qutebrowser* https://en.wikipedia.org/wiki/Qutebrowser
Platforms: Windows, Linux, Mac
o *rekong* https://en.wikipedia.org/wiki/Rekonq
Platforms: Linux
o *surf* https://en.wikipedia.org/wiki/Surf_(web_browser)
Platforms: Linux
o *w3m* https://en.wikipedia.org/wiki/W3m
Platforms: Cygwin, Linux, Mac
o *xombrero* https://en.wikipedia.org/wiki/Xombrero
Platforms: Windows, Linux, Mac

See also... (but these URLs may not have the full offline installer links!)
o *Usage share of web browsers*
https://en.wikipedia.org/wiki/Usage_share_of_web_browsers
o *List of web browsers*
https://en.wikipedia.org/wiki/List_of_web_browsers
o *Comparison of web browsers*
https://en.wikipedia.org/wiki/Comparison_of_web_browsers
o *List of web browsers for Unix and Unix-like operating systems*
https://en.wikipedia.org/wiki/List_of_web_browsers_for_Unix_and_Unix-like_operating_systems
o *Lightweight browsers*
https://en.wikipedia.org/wiki/Comparison_of_lightweight_web_browsers

Unfortunately, there are too many for me to fully categorize, so I'll just
stick with the main ones that are useful to most people, for now at least.

*What MAIN Win/Linux browsers &/or full offline installers have we missed?*