Add-ons Manager has no text

I just downloaded Firefox RC1.
When I open the Add-ons Manager and go to Get-addons i see no text, only images.

fc-cache -f -v
fixed the problem.

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The Add-ons Manager will not display!

I've been having an intermittent problem with certain features not displaying at all. First it was that I could not "Customize" my toolbar for quite a while. It finally returned suddenly, in FF v4.01, after being unavailable since v3.5.
I've also been without the Magnifying Glass search icon since v3.5, which is still missing. And the show "Properties" option has also disappeared from the Right-Click Context menu, I don't remember if it started in FF v3.x , but I think it was right after upgrading to v4, and it hasn't returned since either.
Now it's the Add-ons Manager that has quit working. It has happened a few times before, but quitting and restarting Firefox brought it back.
This time, however, it seems to be completely disabled. I had just removed the IE Tab Plus extension, to be sure I hadn't installed it over the original IE Tab, which they said could cause unpredictable issues.
Next I used "Install Extensions" from the File menu of the Add-ons Manager tab, and selected a copy of IE Tab Plus I had saved to disk last October 2010 to re-install it. But nothing seemed to happen. No pop-up, or any indication/notification that an extension was about to be installed - nothing.
So I did a search for IE Tab Plus to acquire the latest version from it's Mozilla Add-ons page, where I noticed a "Comment" claiming the IE Tab Plus author was using it to secretly install Ad-ware, and recommended using IE Tab 2 instead.
I decided to do as suggested, but there is no link on the page to install IE Tab 2 from either. I decided to quit and reload Firefox, yet even in Safe Mode, I still can not get the Add-ons Manager Tab to load.
Note:
I also have Mr. Tech's cool Toolkit extension, which I believe added the "Extension Options" item to the Tools menu, and it is also empty now. It was not empty just before this. In fact it still displayed my extensions list after the Add-ons Manager had already failed to load again at all.

Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
* Don't make any changes on the Safe mode start window.
* https://support.mozilla.com/kb/Safe+Mode
This can be a problem with the file(s) that store the extensions registry.
Delete the files extensions.* (extensions.sqlite, extensions.rdf, extensions.cache, extensions.ini) and compatibility.ini in the Firefox [[Profiles|profile folder]] to reset the extensions registry. New files will be created when required.
See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to do a compatibility check or see if there is an update.

After automaticly updated to the version 7 the extensions page in the Add-ons Manager went blank and give this sentence "you don't have any add-ons of this type installed" but all the add-ons still working in the program

All the add-ons I had installed for the version 3+++ still working at the version 7, but the problem is that the extensions page in the add-ons manager is blank except a sentence that says "You don't have any add-ons of this type installed"

https://support.mozilla.com/en-US/questions/826729 has a solution for the problem

"Show release notes" fails in Add-ons Manager

Prior to manually updating extensions the "Show Release Notes" option fails with an error message. I always like to know what changes are going to be implemented before updating.
This has been occurring on every update of every extension for the last few months under FF28. FF29 has not fixed it.

I just tried a manual Addons -> Extensions update and got an update for [https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/ Adblock Plus]. When I checked Recent Updates, The release notes were accessible (see attached).
<s>Maybe the release notes only show up AFTER an update?</s>EDIT: I just checked in another profile I had set to manually update addons. The release notes for Adblock Plus could also be viewed before installing the available update. Honestly, I've never even looked at that option in the Add-ons Manager
You didn't furnish the error message you saw and you didn't include any troubleshooting information showing your installed addons (see [[Use the Troubleshooting Information page to help fix Firefox issues]] for future reference). What you should probably do is visit the webpage for the add-on to see what updates are available.

How do you navigate to add ons manager?

I added an add-on but I no longer want it.

In order to uninstall a possibly unwanted extension, please do the following:
#From the Firefox window click the Firefox button at the top left and select ''Add-ons'', or, if the Firefox button is not shown, click the ''Tools'' menu and click ''Add-ons''.
#Once the Add-on Manager has opened in a new tab, click the ''Extensions'' button on the left side of the window.
#You should now see a list of your installed extensions on the right side together with buttons on the right side of each extension.
#To remove an extension from Firefox, simply click the ''Remove'' button. You should see a message that informs you about the successful removal of the add-on.
#Note that some add-ons require a Firefox restart to be removed completely. To perform a Firefox restart after the add-on removal, click the ''Restart now'' link in the message.
You can find further information about uninstalling extensions in the following articles:
[[Disable or remove Add-ons]]
[[Remove a toolbar that has taken over your Firefox search or home page]]

FF4 - Add-ons Manager opens with message: "You don't have any add-ons of this type installed" when I have 25 add-ons installed and usable

Mac/FF 4. Title says it all:
When I go to the Add-ons Manager in FF4, no add-ons are listed, but I'm using the browser and all of my add-ons are available everywhere they're supposed to be.
I have 3.6.16 installed in another directory which uses the same add-ons.

https://support.mozilla.com/en-US/questions/826729 has a solution for the problem

Add-ons manager doesn't load

I am at wits end... I have tried every solution to get the add-ons manager to load and nothing has worked. If you might know of a solution please let me know. I am running Firefox 11, Windows 7 and I have checked for and updated a plug-in. I even clicked on "extensions" and waited a few moments as suggested and then clicked on "Get Add-ons" and it still just says it is loading.

quick suggestion, create a new profile see my last post [/questions/925550#answer-326852]<-- clickable ink

The Add-Ons Manager is supposed to auto update your add-ons but it is not detecting the latest version of Adobe flash player. Why is it not detecting the update?

I have Adobe flash player version 10.2.152.32 installed and Adobe has released version 10.2.3.1 so why is the add-ons manager not detecting that an update is available?

Adobe Flash is not an add-on, it's a plug-in and you have to use the Plug-in Check to check for updates:
https://www.mozilla.com/en-US/plugincheck/

Why does Firefox add-ons manager install old version of LastPass?

After using Chrome in MS Windows for four years I have recently been considering a return to Firefox as my primary web browser.
After installing Firefox v26.0 my first requirement was to get the LastPass add-on, which I did via Firefox's "Add-Ons Manager". I signed in to my LastPass account and all should now have been well.
Not quite. Whenever I launched Firefox and logged in to LastPass, Firefox would hang for about a minute. The same occurred when I updated or created a LastPass record.
Then I checked the version of the LastPass plug-in: 2.0.20, built 2013-02-08. That's from eleven months ago!
I tried the update feature on the LastPass add-on menu, but it did nothing, so I went to LastPass.com and downloaded the latest version (3.0.12, built 2013-12-03). After a restart all was indeed well.
I had the exact same experience with Firefox on Linux, by the way.
Question: Why does the Firefox Add-Ons Manager point to an extremely out-of-date version of the LastPass Toolbar? Is this the fault of the Mozilla team or of LastPass themselves?
Whoever is at fault, it must be corrected and soon. I very nearly gave up on my switch back to Firefox because of this. I'm sure others will have had the same experience.

hello Jesse_Penny, thanks for your insight - according to [https://blog.mozilla.org/addons/2014/01/08/add-ons-update-42/ public information] from mozilla's addons team, reviews for updated addons at addons.mozilla.org currently take around 5 days - so i don't know if this would warrant pulling out of AMO, which causes the issues the question owner has described...

I want to disable plugins, which i can do through add-ons manager, but every time i restart firefox they are enabled again

When i disable plugins firefox runs faster. I could uninstall the plugins, but i periodically want to use them. I have tried using click to play but i want some plugins to run automatically.
I want to disable selective plugins and have some enabled. When i do this via add-ons manager, all plugins are enable on restarting firefox.

i don't use any cleanup tools & MSE is my security software, which is rather unobtrusive and shouldn't interfere here...
i currently have one blocklisted plugin (see screenshot), but if i remember it correctly the problem was already present in my case before i had the outdated acrobat plugin installed.
sometimes when you enable/disable a plugin in the addons manager & press f5 afterwards, it immediately switches back to its old state/sometimes it will stay on the new state until a restart of the browser & in some cases it will remember the state even across sessions - it's just not working reliably in any way.
as far as i can observe the pluginreg.dat file in my profile folder the change of a plugin's state isn't written to the file as soon as it's toggled in the UI during a session, but only when the browser is getting closed - so the information has to be in the memory somewhere before and might be getting corrupted. i suspect it might be a general bug but i cannot reproduce it reliably .
''edit: forgot to attach the screenshot & i'm using the current aurora build''

Add-ons Manager Says Java Needs Update, But Latest Version Already Installed

I have Java version SE7 U51 10.51.2.13 installed and working fine. Today I "upgraded" to FF 28.0. Now the Add-Ons Manager says Java is out-of-date, but when I go to the Java website, this is the very latest version available. I downloaded both the 32- and 64-bit versions anyway (though I had already installed them a month ago) and re-installed both. The FF Add-Ons Manager still has same warning: "Vulnerable- Update Now!" The Java Test page says I have the latest version, and it works.
So what the heck to do?

Never mind- found the answer. It's the same old silly runaround between Firefox and Oracle. The Firefox link send you to the wrong Java version (outdated) and you have to find the correct Oracle webpage that now has Java version 8 (actually v.1.8.0 plug in 11.0.2.132) and download and install THAT. It would be nice if this were simpler...

Add-ons Manager never stops loading

When I try to use the in-browser Add-ons Manager, I can never progress beyond the "Loading..." phase. I still have the Download, Search and Options available. I have waited 5-10 minutes to see if the loading finishes. So far, it has not.
I do not remember what theme I am running. The only add-ons I remember are NoScript, KeyScrambler, and Privacychoice. All my add-ons and themese should be up-to-date as of 8/31/2011.

By default the "Get Add-ons" tab is selected if you open the about:addons page (Firefox/Tools > Add-ons). 
That page tries to load content from the Mozilla server and that can take some time especially if the Mozilla servers are busy. 
You can click on the Extensions tab to see the installed extensions or one of the other tabs to see other installed add-ons.

Why does add-ons Manager create a new tab every time I go to home page?

When I start Firefox my home page tab shows up along with an add-ons Manager tab and a plus sign for new tab. Every time I go to a web site and then return to my home page ANOTHER add-ons Manager tab shows up. This apparently will go on forever. I have had as many as 20 add-ons Manager tabs showing. The only way to eliminate them is to stop Firefox and then restart. Then it starts all over again. What is causing this?
I'm running the latest version of Firefox and Windows 8.1 on a Dell Inspiron with 8G's of memory and a 1T hard drive.
Please help.

Can you post back here a screenshot from this issue?

Firefox 10 Add-Ons Manager does not open in a tab

In later versions of Firefox 9 and now Firefox 10, the "Add-Ons Manager" refuses to open in a tab. Instead, it opens as a window with no border that will not move and cannot be moved or closed except by closing it from the Start Bar at the bottom of the screen.
This occurs on 2 separate PCs, one running Vista, one running XP.
I know it should open as a Tab, but I see no way to do this.
Do I need to change some setting to get it to open properly?
Thanks,
Ken West

updates 9 and 10 have caused me problems as well with add ons and the extra tab appearing welcoming me to firefox.
With update 10 all my add ons disappeared.. upon going to tools /add ons I found half my add ons were incompatable and the others were closed! I just opened them again and all was fine. Luckily the add ons I use often were still compatable.
The other option is to just add them again if they are compatible.. if not you can get around it by googling and comming up with a solution there somewhere.. One I use a lot is download helper and I had to do this about 3 versions ago to get it running.
There could be a solution in Help/trouble shooting and looking at extensions.. your add ons should be listed there and all be True..
If not you will most probably have to open Containing folder in top block and do something there.. Not sure what but will leave it up to the experts..
Seriously it would most probably be quicker to reinstal you add ons.

Why does the Add-ons manager take an excessive time to load and can I view my add-ons without going to the add-ons manager?

When I start my browser up my everything that I have been working on comes up without any problem and I can open a new tab to go to another site without a problem, but when I go to the Add-ons Manager it can take over 3 minutes to load and that's if I don't stop it. My other question is can I view my add-ons, plugins, etc without having to open the Add-ons Manager?

Check out this similar thread: [https://support.mozilla.com/en-US/questions/836711 Some websites, Mozilla included, appear to think I'm using a different version of Firefox from the one I am using; how can I fix this? | Firefox Support Forum]. Does that help?

Add-ons Manager has no text

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