A browser that can get the job done for me is all I need. Firefox has been good enough for me. It is ready to go from the installation. I find a few touch-ups can help me out a bit.
Configuration Edits
The edits I make are listed below followed by their description. The configuration editor I use which makes editing them a bit quicker for me. The editor can be opened by typing about:config in the URL bar.
browser.chrome.toolbar_tips false # UI-element-popup-tips turn off browser.startup.page 3 # previous-session-tabs are restored on launch browser.zoom.full false # web-page-text will only zoom #middlemouse.contentLoadURL false # middle-mouse-click load clipboard-URL turn off (off on Windows) general.autoScroll false # middle-mouse-click scrolling turn off mousewheel.default.delta_multiplier_y 200 # mouse scroll speed nglayout.enable_drag_images false # tab-window-previews-on-drag turn off toolkit.zoomManager.zoomValues .3,.5,.67,.8,.85,.9,.95,1,1.05,1.1,1.2,1.33,1.5,1.7,2,2.4,3,4,5 layout.css.devPixelsPerPx 0.94 # DPI scale
Appearance
Firefox has a couple themes in its options. I like that compact light one.
For typefaces I like to use various Microsoft fonts. These are the fonts I use and their sizes:
Serif Cambria 16...15
Sans-serif Calibri
Monospace Cascadia Mono 13
Minimum 11
I created a webpage to look into what typefaces to use and their sizes; it can be downloaded here.
Add-ons
For my needs Firefox has most of the abilities built-in. There are a few that are well designed that I have learned to trust:
Additional Information
- Firefox Keyboard Shortcuts:
Ctrl+L—URL bar focusCtrl+K—search bar focusCtrl+F—FindCtrl+G—find aGain;Ctrl+Shift+G—find previous
- A
middle-mouse-clickon a tab will close the tab. - For spell checking it is likely a dictionary will need to be added: with a word in a text-entry field right-click
Languages>Add Dictionary; for Linux use thehunspell-enpackage for English. - Reset Firefox for situations where a remedy is tough to find (keeps bookmarks, passwords…).
- Firefox Tips and Tweaks
Linux Tidbits 
Thanks, for the tips :)
I recently found another nice add-on: TACO – it consists of cca. a hundred opt-out cookies for various sites that profile their visitors for e.g. advertising.
TACO, I like the name, and, yeah, no problem. TACO looks like a good thought, will have to check it out.
I’m sure you wanted to say :
middlemouse.contentLoadURL false
Yes, I did Colar. Thanks for the heads up.
Thank you for your suggestion of Highlight Focus. I personally do not use many Firefox extensions, but this one certainly deserves to be installed for me. I always loose my damn focus thing and have to hunt for it on the page or reselect it with my mouse when I sit for a moment and try to think about what I want to type/do/browse/etc.