Shortcuts In Firefox:
I did not leave much out, even some the most obvious like F11 but if I forgot some important one and you have some good suggestions, let me know.
(chromium) means that in Chromium the shortcut is the same.
alt+left arrow : back (chromium)
might not work in debian: solution use backspace key: if this also won't work for you, make sure to set browser.backspace_action to 0 ( found in about:config iceweasel settings )
alt+right arrow : forward (chromium)
alt+Home : Home (chromium)
ctrl + or - : larger/smaller page layout (chromium)
F11, toggle full screen (chromium)
ctrl+n opens new window (chromium)
ctrl+f: opens search page dialogue F3=find again Shift+F3= find previous (chromium)
ctrl+h toggle history sidebar (chromium)
ctrl+b toggle bookmark sidebar (chromium)
ctrl +F11 Stumble Upon toolbar
super alt c Next Stumble (configure in tools, toolbar options, shortcuts).
/ (slash) : find as you type text
' (apostrophe) find as you type link and focus it(enter to activate), use the two following in combination with these two
ctrl+enter: opens already focused link in new tab
shift+enter: opens already focused link in new window
arrow down/up: Select Next/Previous Form Entry or Auto-Complete Entry
ctrl+l or F6: focus address bar (chromium)
ctrl+K : focus search bar
F4+arrow up/down +enter: only when search engine is focused: select from search engine list
Opening, closing and navigating your tabs can be done via these shortcuts:
ctrl+t : new tab (chromium)
ctrl+w : close tab (chromium)
ctrl+Page Up : previous tab (chromium)
ctrl+Page Down : next tab (chromium)
ctrl+tab : next tab (chromium)
alt+num (1, 2, 3, etc) : tab number (chromium)
ctrl+shift+T : open recently closed tabs (chromium)
ctrl+r : refresh tab content (chromium)
ctrl+shift+r : force-refresh tab content
ctrl+u : view tab source (chromium)
F7: toggle on/off caret browsing:(inserts a cursor into the text of the page and is very useful for highlighting and copying text)
Mouseless browsing takes keyboard control to a whole new level.
This site features two addons: the first is called Customize your Web and is a nifty Greasemonkey wysiwyg-editor addon for code dummies like me.
What is especially awesome, is how the developer manages to make page segments selectable and browsable with the keyboard. He shows how to focus elements of a search result page of Google with the keyboard. You can create extensive macro's of a couple of actions you perform regularly on a site and automate them with a keyboard shortcut. The downside of these great features is that each customization is limited and has to be tailored to a certain site. Of course when the build up a a page is similar you can try if it works with the similar pages/websites.
It's amazing and a wonderful add on to customize your webbrowsing.
The second add on from this site is the simpler but very effective mouseless browsing addon:
Mouseless Browsing (MLB) is a Firefox-Extension which enables you to browse the internet with the keyboard. The basic principle is to add small boxes with unique ids behind every link and/or form element. You just have to type in the id and press enter (there is also an automatice mode available) to trigger the corresponding action i.e. following a link, pressing a button or selecting a textfield.
You will need only the numerical keyboard to do your browsing. This is my preferred set up: that you only use the numkeys for controlling this add on.
You can toggle the visibility of the numerical id's. I set visibility out as default; visible by pressing a defined key; I chose to use the decimal key for this purpose.
The numerical id are quite unobtrusive to watch, compared to solutions I tried some years ago. Watch the two excellent videos to get a grip of the possibilities.
I use it most to select a certain tab, focus text fields and open links.