How do you assign or change keyboard shortcuts on Firefox for Mac or Firefox for Linux? I didn't think you could do it on any Firefox.

For what it's worth, there is a feature request on file for ability to add, change or override shortcuts in some future version.

Until then, you can call up Page Info by going through the menu bar, which involves pressing and releasing these keys in sequence. Either:

• Alt   t   i
• Alt+t   i

That translates to:

1. Activate menu bar
2. Tools
3. Page Info

This specific shortcut is defined by default for non Windows platforms.

• https://dxr.mozilla.org/mozilla-release/source/browser/base/content/browser-menubar.inc#511

<menuitem id="menu_pageInfo"
          accesskey="&pageInfoCmd.accesskey;"
          label="&pageInfoCmd.label;"
#ifndef XP_WIN
          key="key_viewInfo"
#endif
          command="View:PageInfo"/>