recommendable! It adds an icon to the tool bar, with "customize toolbar" menu can me removed or added, etc

You need to manually revert
Permissions.default.image to 1 in about:config to allow images to be displayed after removing this add-on

Works well for for I need it for - simply blocks images on fb, etc. saving you bandwidth.

It does not block base64 encoded images at all, which was the purpose I had in mind for it, since adblock doesn't do that either. *sigh* Oh well ...

Don't be put off by the negative reviews. The plugin is quite limited, but it does exactly what it says: block images while browsing. Note that it does not block the images on a page that is already loaded--if you find that a page is displaying images you don't want to see, you'll have to turn this on and reload the page.
With the proliferation of soft porn on even "respectable" sites, this is a valuable tool for those who value their minds and hearts.

One click and every image is blocked. It really helpful for people with slow connection like me :) Usually website won't load but now with this I can set it so only text appear

Although it does block images, as it says. I was looking for an app that block's individual images. For example, I browse a site that has one particular unwanted image that advertises but is not detected by adblock plus. I find that adblock only block's images linked by a url. image block kills all images on the page, even the one's I am browsing.

Simple yet effective. Useful in corporate environments... thank you very much Hemant!

I have the latest version of Mozilla Firefox and after I tried this add-on, my images were completely gone - even when I disabled this add-on, deleted it, restarted my PC.

I installed it again and tried to delete again, didn't help.

I ended up refreshing Mozilla, so all my add-ons, themes, etc. are lost now. God bless the Firefox Devs for saving at least bookmarks, journal and tabs.

Thank you very much. I only wanted to have a convinient tool to turn it on the sites which are loaded with unnecessary photos and turn it off, when I'm actually googling PICTURES.

Not happy at all. Sorry.

I am a seo consultant and make backlink for my client site,but website having image make it slow process as those take much time to load but after installing this plugin i am able to do my best.
Many many thanks to its developer and mozilla organization

I was trying to help the dev to fix a problem but my review was gone! What's wrong?

Either all images load, or no images load. A toolbar button toggles the "load images" state. Basically it's Firefox's old "load images automatically" preference, with a button.

If you want to see one image, you can click the toolbar button and reload the page to load all of the images on that page, then click the toolbar button again to continue blocking images.

Update: "Simple Image Blocker" does exactly the same thing, but doesn't require you to restart Firefox to install/enable/disable it, so I'm uninstalling "Image Block".

Good:
- The toolbar button can be moved!
- The developer listens to the users.
- Images are blocked which other add-ons do not currently block due to a Firefox bug.
- Some embedded images are hidden.

Bad:
- When clicked, the status of the toolbar button is not updated in other Firefox windows. One window will show that images are enabled while another window shows the opposite. Moving the button to the menu popup area makes matters worse, since new windows always begin with the button showing that images are enabled. Also in the menu popup, the button will sometimes continue showing that images are enabled while the text tooltip indicates the true status.
- Embedded images are displayed in Google search results, such as YouTube video thumbnails.
- Some images on Amazon (embedded) and Wikipedia (not embedded) appear very briefly before being hidden. The external Wikipedia image behavior may be the result of Firefox bug 1196784, which should be fixed in version 48.

To the developer: Firefox bug 331257 was reported in 2006 and remains open. It lists some of the many reasons people may wish to hide embedded images. I hope reading them will fully convince you that hiding them is the correct decision. Thank you for continuing to support this important add-on!

Simple and mostly effective but I'm still seeing images on some sites, like amazon.com.

somehow manages to kill even on-the-fly generated images and impossible-to-block sites like the guardian! (using in Windows)

NB users experiencing problems should note: if disabling or uninstalling, you have to switch it to show images before doing so, not leave blocked then disable (at least in previous versions) I particularly like that this addon does not automatically reload a page every time you change permissions, as i use it to cope with poor bandwidth! Highly recommend for this

don't work at all

Yes it's true what reviewer ander already said below. I wanted to adjust urlbar/search bar widths, and THIS buttion was always in the way. So I had to uninstall (!) the add-on to be able to get rid of the icon in my Navigation Bar again. Why, if there is one thing I hate, it's whenever buttons/icons seem to be put in concrete.
Oh, especially for @James , reviewer from last year's December: you CAN do somethig about it. If the tool ever messes up your setting of images displayed/hidden once uninstalled, look at option permissions.default.image in about:config. A "2" will mean it's disabled. Changing it to a "1" will allow images to get displayed again. Voila!

Полезное в плане том, когда нужно открыть быстро страницу и глянуть имеется или нет то, что ищешь в интернете.
Было бы хорошо сделать при включении картинок чтобы страница автоматически обновлялась. Ибо приходится нажимать вторую кнопку.
А то, что после удаления расширения браузер Firefox-31.8-esr перестал вообще показывать картинки – мелочи :–) Восстановление параметра browser.display.force_inline_alttext в TRUE - показывать картинки к результату не привело.
Остерегайтесь этого дополнения, опасно!

Once you install this you might end up having to keep it installed because once you uninstall it all images you see on the browser will not show up. So you either have to reinstall FF(if you're going that route I suggest getting the MozBackup add on to save your history,bookmarks,etc)or reinstall this app to get the images back and search for a way to uninstall this without having to reinstall FF.

This does just what it says—very helpful! I like its simplicity—no options to fuss over, no presumptuous keyboard shortcuts, no auto-reloading of pages. (There are times when you don't want to reload immediately, and pressing F5 is easy enough.)

The only annoyance is that, unlike every other FF extension I've ever used over 20-odd years, this one won't let you move its toolbar button. From what I know about coding, the developer must've deliberately implemented this.

Why? People like to organize their toolbars—e.g. to put their most-used buttons closer to center, to group related buttons. Perhaps our esteemed developer has a control issue or two?

While this extension works on many sites, it fails on two of the biggest ones, Wikipedia and Google.

As has been noted in other reviews:

This extension's icon won't allow itself to be moved from the right most end of the tool bar thus pushing the dreadful menu icon out of the corner where it belongs.

I stopped using it because it wouldn't work on so many sites. Once in a while when a site doesn't have images I'll discover that it was accidentally turned on.

My personal gripe:
This extension won't uninstall, even if I reinstall it and try again.

AVOID this extension at all costs! There are other extensions that do the same thing with fewer headaches!

. . . and no longer supported.

Simply and effectively - thanks!

this actually save me,i couldnt for nothing figure out why did my net stop showing images,instantly after download i clicked the button for compatibility after i refreshed an it worked!