Cannot "open new tab" from exsisting tab

i can open a new browser window but when I click "open new tab" symbol nothing happens

Uninstall the Ask toolbar and it should work again. There is a compatibility issue with the Ask toolbar and Firefox that prevents new tabs from being opened.
There are a couple of places to check for the Ask toolbar:
* Check the Windows Control panel for the Ask Toolbar - http://about.ask.com/apn/toolbar/docs/default/faq/en/ff/index.html#na4
* Also check your list of extensions, you may be able to uninstall it from there - https://support.mozilla.com/kb/Uninstalling+add-ons

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Adobe Flash Player 11.3.300.265 cannot open new tab in Firefox 14

Cannot open new tab after updating adobe flash player to 11.3.300.265 in Firefox 14.01
Reinstall Adobe Flash Player to earlier version 11.2.202.235 and everything work fine with Firefox 14.01

If you keep having problems then try a new profile.
Create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
If the new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
See:
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Cannot open new tab or addons page

Hi!
After upgrade Firefox from version 26 to 27 or 27.0.1 I have strange issue.
I Cannot open new tab, when I`m clicking on the plus button or CTRL+T key combination blank space is visible between tab and plus button (see attachment).
Also, I can`t open Addons page.
I`ve trying to run Firefox in safe mode, deleting Profile, reseting to default settings, disable hardware acceleration.
None of above helped :(
http://i57.tinypic.com/6tlrth.jpg

Hello MMpl, any luck if you delete the [http://kb.mozillazine.org/Localstore.rdf localstore.rdf] file in the [http://kb.mozillazine.org/Profile_folder_-_Firefox#Windows profile folder] ?
http://kb.mozillazine.org/Corrupt_localstore.rdf
thank you

After upgrading iPad 2 to iOS 7 , cannot open new tabs in safari . When pushing on " " , Safari close the application .

After upgrading iPad 2 to iOS 7 , cannot open new tabs in safari . When pushing on " " , Safari close the application .

Try a Restart.
Press and hold the Sleep/Wake button for a few seconds until the red "slide to power off" slider appears, and then slide the slider. Press and hold the Sleep/Wake button until the Apple logo appears.
Resetting your settings
You can also try resetting all settings. Settings>General>Reset>Reset All Settings. You will have to enter all of your device settings again.... All of the settings in the settings app will have to be re-entered. You won't lose any data, but it takes time to enter all of the settings again.
Resetting your device
Press and hold the Sleep/Wake button and the Home button together for at least ten seconds, until the Apple logo appears. Apple recommends this only if you are unable to restart it.
Or if this doesn't work and nobody else on the blog doesn't have a better idea you can contact Apple.
Here is a link to their contacts with most of the information below.
http://www.apple.com/contact/

I cannot open new tabs in Firefox, either with CTRL+T or with the mouse right click or click on the tab icon.

I cannot open new tabs in Firefox, either with CTRL+T or with the mouse right click or click on the tab icon.

I have this problem as well. I could not see the ask toolbar in firefox, yet in the add or remove programs it was installed. As soon as I uninstalled it, I could open tabs again!
Thanks guys!

I cannot open new tab and get rid of the annoying tool bar. Help!

I click on plus sign, it says "open new tab", but it does not open
Also, I want to uninstall the tool bar, but the message says it does not exist.
At first I thought I got a virus, but I uninstalled and re-installed M.Firefax twice already and the issue remains

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
Check with ALL programs.
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
Did this fix your problems? Please report back to us!

Since the latest update, I cannot open new tabs in one of my profiles - I'm using XP SP2

My home page (www.gmx.co.uk) opens with no problem but I am unable to open a new tab from either the "+" beside the open tab or the File menu. Firefox Help does, though, automatically opens with a new tab.
The problem appears to be confined to one profile - infortunately my work profile - where I would normally have 4 or 5 tabs open whilst working. My personal profile (home page www.BBC.co.uk/news) seems unaffected.
For the time being, I am working round the problem by opening a series of 'Help' tabs to give me my workspace.

https://support.mozilla.com/en-US/questions/791743

Cannot open new tabs or load new sites by typing in URL.

When I click on the "+" button to open a tab (or from the File menu) nothing happens. Also when I try to go to a new web page by typing in the URL, nothing happens. A new web page and tab only opens by clicking on a (Google) search result item. Re-starting Mozilla does not help.
Note: Printing data from Troubleshooting Information below deleted to limit characters to less than 30.000.

Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do not click the Reset button on the Safe mode start window or otherwise make changes.
You can use one of these to start Firefox in Safe mode:
*On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
*On Mac, hold down the Options key while starting Firefox
*Help > Restart with Add-ons Disabled
*https://support.mozilla.org/kb/Safe+Mode
If it does work in Firefox Safe-mode then disable all extensions (Tools > Add-ons > Extensions) and then try to find which is causing it by enabling one extension at a time until the problem reappears.
Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
See also:
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

I cannot open new tab pages in my browser.

If I click on the little plus nothing happens. If I try the shortkey, nothing happens. But new tabs do open automatically if I click on a link in a website.

That certainly was the problem.I uninstalled ASK toolbar and the problem was solved. Thanks

Cannot open new tabs. I have a laptop Vista. Had no problems before. is it the new update for foxfire 3.6.13? please advise. Hildee

I'm attempting to open a new window w/tab options. Can't even open a new tab using my mouse.

Thanks very much. Disabling the Ask Toolbar add-on solved the problem for me.
Peter

I cannot open new tabs. None of the "new tab" icon, cntl-T, or file-New Tab work. How can I fix this?

they simply do not work.
click the icon - no new tab
ctrl-T - no new tab
file->new tab - no new taB
FireFox 3.6.20 -- Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.20) Gecko/20110803 AskTbTRL2/3.12.5.17640 Firefox/3.6.12 NET_mmhpset ( .NET CLR 3.5.30729) Win/XP-SP3

This issue can be caused by the Ask.com toolbar (Tools > Add-ons > Extensions)
Your system details show that toolbar in the user agent as AskTbTRL2/3.12.5.17640
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
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

Cannot open new tabs in same window since FF update to version 15.0

This morning, FF updated to version 15.0 when I opened it. Now, All links open in new windows instead of tabs like I have it set to do (yes, I've already checked).
Also, I tried to go to about:config and NOTHING HAPPENS. The address bar is not working. I cannot even get the addon page to open so I can view my plugins/addons.
Also, when I try to close one of the windows, the whole browser closes. HELP ME.
This version is BROKEN.
I need this fixed NOW. I have work to do and this is truly messing up my productivity.

So no help will be given on this??? Guess I need to switch browsers, then. PERMANENTLY.

I cannot open new tabs by clicking on the plus mark or by right clicking and selecting new tab. Why is this? I have updated Firefox, and it did not help.

See above

That can a problem with the Ask.com toolbar (Tools > Add-ons > Extensions)
See:
* [[Troubleshooting extensions and themes]]

Firefox won't let me open new tabs. I have restarted, I've done the drop down, I've clicked on the "+" but nothing happens.

I cannot open new tabs & it is really frustrating. I've tried the drop down to open new tab, I click on the + but nothing happens. Can anyone help?

Uninstall the Ask toolbar and it should work again. There is a compatibility issue with the Ask toolbar and Firefox that prevents new tabs from being opened.
There are a couple of places to check for the Ask toolbar:
* Check the Windows Control panel for the Ask Toolbar - http://about.ask.com/apn/toolbar/docs/default/faq/en/ff/index.html#na4
* Also check your list of extensions, you may be able to uninstall it from there - https://support.mozilla.com/kb/Uninstalling+add-ons

I cant open new tabs and instead have to open new windows - vert frustrating

I cannot open new tabs in the firefox browser. (this has only just started happening. previously it worked fine)
I have tried a number of different ways and it doesnt open.
Internet explorer does not have the same problem

Disable the Ask Toolbar extension - it is known to cause a problem with opening new Tabs in Firefox 3.6.13.

Cannot "open new tab" from exsisting tab

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