When trying to customize add-ons down on the status bar, several on the far-right are 'locked in place'.

Does this 'grayed-out area' have anything to do with- 'all of the add-ons that you installed before you loaded the Theme Font & Size Changer' ?

Not all buttons that are added by extensions can be moved to another toolbar.<br />
So it is possible that those buttons are added by an extension that only supports the Add-on bar for their buttons.
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

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Firefox 36.0.1 on Mac running Yosemite 10.10.2 hangs when trying to open Add-ons Manager

I am running Firefox 36.0.1 on an iMac with Yosemite 10.10.2. Firefox is working fine except that it hangs and forces me to Force Quit the application every time I try to choose Add-ons from the Tools menu. I have never had this problem before. This problem has happened for three straight days with my iMac being restarted several times. The same problem happens when trying to access Add-ons from the Open menu icon. Does anyone have a solution? Thanks!

If you put this into the url bar: about:addons
does this also happen? If not, add the icon back and remove it to reset it.
*[[Customize Firefox controls, buttons and toolbars]]
Does it also happen in Safe Mode?
*[[Troubleshoot Firefox issues using Safe Mode]]

Since the latest version of itunes, my playlists are "too large" to fit on the computer screen. I can no longer scroll down because the far right side of the screen is too far over. How can I minimize the screen or be able to scroll down my list? Thx!

Since the latest version of itunes, my playlists are too large to fit on the screen. The left side, with all my playlists is still there, but I can no longer scroll down the chosen playlist as the far right is no longer accessible. Any suggestions on how to minimize the list? Thanks.

I have the same problem on the latest iTunes software and Windows 7. My window is maximzed and I do not see any tab for photos. Seems related to a recent update (IOS7?) as this was there - at least before the very big change to the interface.

I always get the following error msg when trying to update add-ons "Invalid file hash (possible download corruption) -261"

I get the following error msg when I try to update add-ons ...
ErrorFirefox could not install the file at
http://releases.mozilla.org/pub/mozilla.org/addons/1865/adblock_plus-1.2.2-fx+sm+tb+fn.xpi
because: Invalid file hash (possible download corruption)
-261
Why, and is there a solution. Im fully patched on osx.
+ Fredrik

* "Clear the Cache": Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
* "Remove the Cookies" from sites causing problems: Firefox > Preferences > Privacy > Cookies: "Show Cookies"
You can also try to enable third-party cookies<br />
Firefox > Preferences > Privacy > Cookies: [X] "Accept third-party cookies"
See [[Disabling third party cookies]] (you need to enable)

Firefox crashes when trying to open Add-Ons menu

Firstly the search bar that s part of the Google toolbar would not search what i typed in it, it would simply do nothing. After I discovered this I decided to go look at the add-on or something in the add-on menu under tools. When I clicked "Add-On" firefox froze and has continued to do so everytime I click that option resulting in me having to force the program to close.

I have successfully disabled the addons by going this route;
http://kb.mozillazine.org/Safe_Mode

AddThis Button is gone after the last update. Also when I click on add ons, then select the options button on any add on the add on screen locks up and I have to shut down firefox. Any Ideas how to fix this? Running Windows XP.

After the most recent Firfox update, the Add-on page locks up when I click on options for any add-on. Also my AddThis button is gone.

# Yes, if you go to accounts.firefox.org, sign out, you will now be signed out.
# Sign back in, and you will be asked to save the password you entered.
# This will save the password and autocomplete if you have this option turned on.
I am not exactly sure why the menu did not detect the password change or if it was stored incorrectly after you changed it? But after storing the correct password you can manage any duplicate passwords in the password manager.[[Password manager - Remember, delete and change saved passwords in Firefox]]

When trying to close one tab, i get the message "you are about to close 2 tabs" this is not what I want. I only want to close one tab at a time in English

I only want to close one tab at a time

ONLY 8 people have this problem?
Look, virtually all Mozilla's potential users are coming from Internet Exploder, which gets this ALMOST RIGHT, while FireF*x does it totally wrong. Including in webmail: there's no way I could have got to this forum without leaving 4 windows active or closing everything, including closing my mail without logging out.
ONLY 8 PEOPLE? How many thousand simply throw up their hands & uninstall yr f- nurdware over this one single issue? Not to bore you with details, but I'm hardly unsympathetic to open sources that don't look like the best argument for Micros**t and Google hegemony.
Btw, I said they get it -almost- right... It would be really nice if IE or >somebody< offered a checkbox to NEVER close multiple tabs. Look, if this bug disguised as a feature is useful to a few nurds by all means keep it as an advanced option, but PLEASE set up FireFox so it at least defaults to the real world.

Secure connection failed message when trying to use add on

When I click tool and go to Add ons I get the message above. I am trying to add on a calendar from lightning..

The website may try to fallback to TLS 1.0 in a way that is no longer allowed in current releases or may be using a deprecated cipher suite.
You can open the <b>about:config</b> page via the location/address bar and use its search bar to locate this pref:
*security.tls.insecure_fallback_hosts
You can double-click the line to modify the pref and add the full domain (www.planet.snb.ca) to the value of this pref.
If there are already websites (domains) in this list then add a comma and the new domain (no spaces).
You should only see domains separated by a comma in the value column.
If this helps then you can contact this website and ask them to look into this.
*https://developer.mozilla.org/en-US/Firefox/Releases/36/Site_Compatibility#Security
*https://developer.mozilla.org/en-US/Firefox/Releases/37/Site_Compatibility#Security

None of my addons or extentions work any more since installing 3.6.6. When I go Tools/Add-ons it just goes 'ding' [makes an error noise] when I click on any oth the options and then firefox freezes up.

None of my addons or extentions work any more since installing 3.6.6. When I go Tools/Add-ons it just goes 'ding' [makes an error noise] when I click on any of the options and then firefox freezes up and I have to go to the task manager to shut firefox down.
== This happened ==
Every time Firefox opened
== when i updated to 3.6.6

Delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini) and compatibility.ini in the Firefox [[Profiles|profile folder]] to reset the extensions registry.
See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
If you see disabled extensions that are not compatible on the next start in "Tools > Add-ons > Extensions" then click the "Find Updates" button to do a compatibility check.

The Add-ons selector in the Tools drop-down menu causes a crash.

Google Toolbar does not respond to search requests. Nothing happens when I click the search icon. When I try to uninstall it, nothing happens. When I click the Add Ons option in the Firefox Tools menu, it causes the program to crash. And while it is crashing I get an error about ndExtensionManager.js631 I think.

Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
You can use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

I have a g4 running os10.4.11, i bought a epson workforce 1100 and tried to set it up but there is not a listing for it when i try to add it before installing the driver software from the supplied cd...anyone know what i can do to get it set up?

i have a g4 running os10.4.11, i bought a epson workforce 1100 and tried to set it up but there is not a listing for it when i try to add it before installing the driver software from the supplied cd...anyone know what i can do to get it set up?

Load the drivers and you should then be able to add it in Print Center.

"Checking Compatability of Add-ons" Update window at each startup & redirects to a welcome page. Tried disabling all add-ons & updates / force compatability checker. Thoughts?

Each time I start Firefox a "Checking Compatibility of Add-ons" update window appears, which redirects me to a welcome to Firefox 5.0 page with my normal home page in another tab. I tried disabling all add-ons and updates as well as the force compatibility checker. I think my AVG safe-search bar might be causing the problem, but I have it disabled and never use it. Please help me get rid of this.

See:
* http://kb.mozillazine.org/Preferences_not_saved

Why does Firefox 4 for mac crash when attempting to manage add-ons?

Downloaded firefox 4 for mac yesterday. Working fine until I started adding add-ons/extensions. Since then, any attempt to manage add-ons or extensions crashes Firefox and requires a force quit.
Help?

Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
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 to do a compatibility check.

Error 9672 when trying to "re-add" HP Deskjet 3900 printer

Hi, I've seen the discussion about the Error 9672. But the answers don't really help. I get the same errormessage when trying to re-add the HP 3900 deskjet printer that I had to delete because it was not working properly. Now I just can't add it again... I can find it as an available Bonjour printer. But what can I do next? I haven't really been able to find out if this is a commonly known Apple bug, or if it is a bug that HP should be working to fix. Can anyone help? The printer works fine when connected directly via USB by the way.
iBook G4 12" Mac OS X (10.4.8)

I found the same thing out yesterday and did the same solution.
One issue should be noted. The quality of the print is much worse since we are not using the correct print driver. Works fine for standard unimportant text printing, but really can't be used for printing photos.
Connect the printer directly to the computer USB and print a photograph using the real print driver, then connect wirelessly using the above method and print the same photo. The difference is dramatic.
It also seems to overuse black ink when hooked up through the Airport, and the printer light blinks for a while after printing is done.
Anyway, I plan on leaving it hooked up wirelessly for convenience sake, but when good quality is needed I will attach it directly to the USB port.
You can verify my findings and let others know if you find the same thing I found.
Good luck, and lets hope there are more compatible printers available in the future.

Firefox freezes when I access my add-ons page.

Firefox freezes when I access my add-ons page. I must use Task Manager to unfreeze it. Some add-ons (AdBlock) still work. Others (NetVideoHunter) don't. I would like to remove all the add-ons and start fresh, see if it makes a difference, but when I access my add-ons page to press the "Remove" button, FireFox freezes--so what am I supposed to do? I like Firefox because it's simple and generally glitch-free--until now.

hey furdeal - if you'd like a fresh start, you can simply [[Reset Firefox – easily fix most problems|reset firefox]]. this will keep your bookmarks, passwords & history but will remove all extensions and custom preferences...

When trying to customize add-ons down on the status bar, several on the far-right are 'locked in place'.

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