The first thing you will want to do is check for updates for your add-ons.  You can easily do this in the latest version of Firefox by clicking the Firefox button and then click Add-ons. This will open up the Add-ons Manager.  Next, select the gear button at the top and select, “Check for Updates”. Firefox will then search for and download any updates that are available automatically. Restart the browser when asked, and you should be good to go.

If the add-on has been simply disabled (Firefox sometimes does this with add-ons that were added by another program) you should be able to simply re-enable the add-on in question.

1. At the top of the Firefox window, click on the Firefox button and then click Add-ons. The Add-ons Manager tab will open.
2. In the Add-ons Manager tab, select the Extensions panel.
3. Click the Enable button next to the add-on you’d like to re-enable.

Know of any more fixes?  Be sure to leave them in the comments!  Hope this helps you the next time you find your favorite add-ons are not working in Firefox.

So, where should you turn to get the Mobile Add-ons for your favorite browser?

Head over to the special Firefox Mobile Add-ons website. Here, you can find a significantly smaller list of extensions that have been written with the Mobile version of Firefox in mind.

Some of your old Firefox favorites, like AdBlock Plus, NoScript and Speed Dial are available.  Who knows, you might find a few new favorites too.

So, with that idea out there – let me know in the comments if you would like to see me do more mobile only add-on reviews in the future here on Firefox Facts.  For the most part, this website has been pretty focused on the desktop only version of Firefox since the beginning – but if you’d like for me to branch out let me know and I will do my best.

You can check out the mobile friendly versions of the Firefox Add-ons on the Mobile Add-ons website.

Use the chat feature on Facebook? One thing that it really lacks is a way to keep a history of who you talked to and what was said.  Thankfully though, this add-on – Facebook Chat History Manager – will give you a way to simply browse through your previous Facebook chats.

All the content you wish to browse through is saved locally, and you can browse through your Facebook chat history anytime online or offline. How about your message security? Here is what the developer has to say.

Your messages are securely stored and only person passed the security check can view saved messages.Note that all messages are stored in your client, this application won’t store your chat history on server.

The only downside I see to this, is when you are installing – the add-on looks for your Facebook ID number, rather than your user name.  That might confuse some users.  Other than that, it is a great start to a very interesting extension.

You can pick up the Facebook Chat History Manager from the Firefox Add-ons website.

Sometimes we all go a little tab-happy when it comes to our Internet browsing ways.  You might be browsing around, one lazy Friday afternoon, and before you know it – you have twenty open tabs and then decide, "hey, maybe I should get back to work!".  Well, have no fear, because I can get all your tabs closed in one click or two.

The Close All Tabs (Reloaded) extension for Firefox will add a button to your toolbar to close all the open tabs.  You also have two configurations that come into play with this simple add-on.  You can choose whether the browser’s home page should be loaded, or if you want to see the warning about closing multiple tabs.

After installing Close All Tabs (Reloaded), the button is not instantly added to the toolbar.  You will need to customize the toolbar, and select where you need the button to be.   You can pick up this great browser add-on over at the Firefox Add-ons web site.

If you do not want to add another extension, you can also close all your tabs by following these simple steps.

1. Right-click on the tab bar in Firefox
2. Select "Close Other Tabs"

This will, in turn, close all the other tabs that were open, other than the tab that you clicked on when right-clicking the tab bar in Firefox.  It is a simple, yet sometimes overlooked, Firefox fact. 

File this add-on under awesome.  The Places’ Tooltip add-on for Firefox adds more detailed information about the bookmarks and links you have saved to your browser. 

It shows you more than your standard name and address, as Firefox does by default.  Once installed, you can see:

the last visited date, the tags associated with the link, the description and the keywords

It shows the tooltip for and in:

all links, folders, bookmarks, RSS items in the bookmarks toolbar, bookmarks menu, history menu and sidebars

This is a great simple extension for those who just need to have a little more information handy about the links they have saved to the browser.  You can pick up the Places’ Tooltip add-on on the Firefox Add-ons web site.

That might be a little extreme, but it does help to point out that this extension will let you split your browser up however you see fit to do so.

Here are the various ways you can split things up:

• Choose the “Split Browser to” menu in the context menu.
• Choose the “Load in Split Browser” menu in the context menu on link.
• Click popup-button on top/bottom/left/right edges of the content area.
• Drop links, bookmarks, tabs, etc. to popup-button on top/bottom/left/right edges of the content area while dragging.

To close split browser frames, hit the close button (for that frame) or “File” > “Close All Split Browser” closes all of them at once.  Another neat feature is that the status of the split browsing window saves, so it will automatically restore your splicing of the browser next time you start Firefox.

Split Browser is a terrific add-on if you are looking for a unique way to browse multiple web pages at once.

Want to hide what it is you have been looking for?  Not the perfect solution, but perfect for nit-picky peeps is the Clear Search add-on for Firefox.

What does this browser extension do?  It does one job, and it does it really well.  Once installed, it automatically clears the search bar after performing a search. So if you have a nosey roommate or family member, they won’t accidently see you have been searching for the top 10 horror villains of all time.

While this add-on for the browser isn’t enough to prevent somebody who is really nosey from going through your history, and doing a full scale investigation – it does serve the simple task or clearing out your search box after a search very well.  You can pick up the Clear Search extension on the Firefox add-ons web site.

TinEye claims to be the world’s first reverse image search engine.  Rather than typing in a phrase and looking for a picture, you type in a picture and get other pictures like it – or something like that.  Thanks to the TinEye add-on for Firefox, you can get instant image searching done right from the browser.

Here is a little more about TinEye from it’s developers:

TinEye is the first image search engine on the web to use image identification technology rather than keywords, metadata or watermarks.

When you submit an image to be searched, TinEye creates a unique and compact digital signature or ‘fingerprint’ for it, then compares this fingerprint to every other image in our index to retrieve matches.

TinEye does not typically find similar images; it finds exact matches including those that have been cropped, edited or resized.

Once installed, you can right-click on any image, and select “Search Image on TinEye”.  When you do, you’ll be taken to an TinEye web page, that will display your search results.

It might not be a tool for everybody, but I do find the idea of reverse image searching very interesting and fun to play with.  You can learn more about it at TinEye.com.

Are you a big fan of Google’s custom search feature, which allows you to customize your own search engine to fit your needs?  The Custom Google Search add-on for Firefox, in that case, is a perfect companion. 

In a nutshell, this extension for Firefox allows you to create, use and mange your own Google Custom Engines from within the Firefox browser interface. 

You can pick up the Custom Google Search add-on for Firefox on the Firefox Add-ons web site. 

So which bookmark add-ons for Firefox are downloaded most often?  Here are the top ten most downloaded bookmark extensions for the browser.

• SmarterFox – Browse faster by speeding up common tasks – faster downloading, searching, visiting favorites, copy & paste, and more.
• Xmarks (formerly Foxmarks) – Xmarks is the #1 bookmarking add-on. Install it on all your computers to keep your bookmarks and (optionally) passwords backed up and synchronized.
• Delicious Bookmarks – Delicious Bookmarks is the official Firefox add-on for Delicious, the world’s leading social bookmarking service.
• StumbleUpon- StumbleUpon discovers web sites based on your interests, learns what you like and brings you more.
• Speed Dial – Quicker direct access to your most visited web sites and saved links.
• Google Toolbar – Not sure why people are still using this, however it did make it on my list of non-evil toolbars, so go figure.
• Brief -  Brief makes reading RSS feeds as easy and intuitive as it gets. Designed to have exactly the right set of features, it is powerful and simple at the same time.
• Fast Dial – Much like Speed Dial, this add-on gives you a quick visual way to access a number of web sites all from one page; showing thumbnails for each.
• iMacros – Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the solution you’ve been dreaming of!
• Multirow Bookmarks Toolbar – This add-on does exactly what you would expect, it gives you multiple bookmark rows.  Yes, I like it when they name add-ons about what they do. 

There you have it, these add-ons have been downloaded more times than any other, and all will help you in one way, shape, or form with your bookmarks.  Have another favorite that you think deserves to be on the list?  Leave a comment, and tell me why.