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About this Add-on
NEW: Integrated image viewer with pan and zoom.
NEW: Choice of replacement font.
NEW: Support for multi-process Firefox.
Column Reader makes reading a pleasure by providing the following features (see Screenshot 1):
> Paper, scroll and book layouts.
> Up to five columns for wide screens.
> Four different scrolling modes.
> Document miniature view in scroll bar.
> Replacement of fonts by a local font.
> Configurable color filters.
> Full screen image view with pan and zoom.
> Storage of settings for web domains.
> An intuitive content selection tool.
Column Reader adds a toolbar button which you may click 1) to enter the content selection mode or 2) to directly enter the reader mode in case options had already been saved for the current domain (see Screenshot 2).
To exit the reader, you may click the red bar within the reader, press ESC, or click the Column Reader toolbar button.
Within the reader, the following keys may be used to scroll: arrow left / arrow right / page up / page down / arrow up / arrow down / space / home. Reader areas that have a scroll function are recognizable by a custom mouse cursor. Content elements that can be scrolled horizontally show a horizontal arrow cursor.
> Left-click is disabled within the reader for safety (except for internal links), but you may still use right-click.
> In case content is too wide to fit a column, your best option is to reduce the number of columns using the options panel.
> Version 5.0 uses the GPU for color transformation, which may result in noticeably slower scrolling if your GPU is slow. If this is the case, you may want to use my extensions Colorific or Color Transform for page coloration (although these consume significant CPU time during color transformation).
Please donate to enable me to make the following improvements:
> Text zoom independent of the underlying page/OS zoom.
> Automatic opening of reader when target element matches.
> Option to set absolute column width, independent of page width.
> Options for content selection using element location, id and/or class.
> Improved approach for pages with nested tables.
> Improved estimate of page background color.
> The ability to open multiple links on a page in one document.
FEATURE: The toolbar button and context menu items now have different icons that indicate the state of the selector and reader module.
FEATURE: Separate menu items were added for opening the panel and for entering the reader, also to the tab context menu.
FIX: Start-up is now more reliable, for example when quickly opening multiple windows.
FIX: Context menu items are now created only when a menu is opened, which also prevents the failure of XUL overlays.
FIX: A domain-dependent style preference are now used also after a different page element is selected.
FIX: Full screen mode is now again the browser full screen mode, now that the full-screen-api is broken.
FIX: The element selector no more fails when the clicking outside of the body element.
FIX: The reader no more fails when document.documentElement is selected.
FIX: The panel background was made transparent to prevent a paint bug with 100% CPU upon resize.
FIX: The outdated extension preferences branch is now removed directly after upgrading (and no more after uninstallation).