Textmarker: Mark text temporarily or permanently in Firefox

Martin Brinkmann
Jul 27, 2015

Textmarker is an easy to use browser extension for Firefox that allows you to mark text on web pages you visit temporarily or permanently.

Web browsers don't come with options to highlight text on web pages, at least not in their default state.

This may sometimes be necessary or desired, for instance when you use a resource regularly and want to make sure that the most important information are highlighted for better accessibility.

With Textmarker for Firefox, things could not be easier. To highlight text simple select it using mouse or keyboard, and hit m afterwards to use the first configured color for the highlighting.

You may hit 2 or 3 instead to mark with different colors instead, and if you don't like the default color scheme for a shortcut, you may modify it in the options.

There you may modify the background color but also other parameters such as formatting options, a different text color or size and font.

Textmarker adds an entry to the context menu of the mouse which you may use instead to highlight text on pages you visit in Firefox.

Changes are temporary by default but can be made permanent with a tap on Ctrl-Shift-S. If you think that this is too much work, you may change this directly in the options so that all changes are saved automatically and persist across sessions.

The control options page provides you with options to enable or disable select features. You may disable mouse support there for instance, or disable one of the markers or other functionality that you don't require.

As you can see on the screenshot above, additional shortcuts are provided, for instance to undo the last action or to use the built-in Wikipedia look up option which opens the term you have highlighted on Wikipedia in a new tab in the browser.

Another interesting feature is the extension's built-in bookmarking functionality which scrolls the text automatically to the lowermost bookmark on consecutive visits. This can be useful if you are reading a book online or access a large text on a site that you cannot read in a single session.

Closing Words

Textmarker is a useful add-on for Firefox that adds text highlighting to the browser. While that would be great itself, its the extra features like bookmarking or permanent highlighting that make it shine.

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  1. alx said on July 29, 2015 at 6:06 am

    Accompanied with Diigo, another ff ext., PageExpander can enrich the free version to show images, videos and embed objects on diigo notes collection page, pls read the AMO for details. :


  2. alx said on July 29, 2015 at 6:02 am

    Hi Exa,

    Diigo is still work perfectly (tested on firefox 39 and 40b8), no matter the marker and notes features.

    AMO : http://addons.mozilla.org/en-US/firefox/addon/diigo-web-highlighter-and-stic/?src=search
    HP : http://www.diigo.com/

    The official HP with a newer version ( than in AMO (, seems developer havn’t update their extension thr. AMO.

    Hope It’s help.

  3. Ken Saunders said on July 28, 2015 at 7:44 am

    It looks cool, and useful of course.
    I’m going to try it, thanks.

    I’m pretty sure that you already knew this, but, it’s easy to clean up the AMO links.


    Remove the en-US/ locale (or other) and everything after the add-on’s name.

  4. Exa said on July 27, 2015 at 3:59 pm

    Thanks Martin for this gem. I am still in a mission of finding a good add-on to replace Diigo. I like my data to be local and not cloud synced which is what Diigo do. Also it did not see an update since 2013.
    I’d really appreciate if somebody knows a go replacement (functionality needed = highlighting + notes || comments).


    1. Kulm said on July 27, 2015 at 7:28 pm

      @ Exa,

      Highlighting plus Notes…

      Wired-Marker 4.0.11120600.1-signed

      1. Exa said on July 27, 2015 at 10:07 pm

        Man, you nailed it. This is exactly what I’m looking for. I’m afraid that it will lose functionality with FF updates since it did not get an updated since 2011.

        Thanks Kulm!

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