There is one behaviour on Windows’ which I much prefer over Linux:

You can use the key Ctrl+<Action> to navigate between word boundaries, for example Ctrl+Backspace to delete the last word. This/is/especially/useful/when/editing/the/URL.html because it provides an easy means to delete back to the last /.

Unfortunately, on Linux, the only accepted boundary seems to be whitespace characters, so this is not very practical.

For my command line shell (zsh), I have changed this default behaviour with the command

WORDCHARS=${WORDCHARS//[&=\/;\!#%\{]}

This means that the characters &=/;!#%{ will also be recognised as valid word boundaries.

Unfortunately, Firefox does not allow such a fine grained control. Fortunately, you can at least bring the Windows Firefox behaviour to Linux. Here’s how:

1. Go to about:config
2. Search for layout.word_select.stop_at_punctuation
3. If it doesn’t exist, right-click and choose New > Boolean
4. Set layout.word_select.stop_at_punctuation to true

Enjoy.