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I have the same problem as https://support.mozilla.org/en-US/questions/881844 but with fx 21.

Firefox 21 on Ubuntu 13.04 stops loading pages after a while, ranging from less than an hour to a day, of regular browsing. It gets stuck on "looked up whatever.com" or "connecting to..." message. Restarting the browser makes it work for another period.

Changing network.http.max-connections did not help, clearing various history items (cookies, cache, ..., or everything except saved passwords) did not help.

I now disabled ipv6 https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can?#w_ipv6 and prefetching but the fact that the problem occurs after several hours makes it hard to test.

I recently updated to 20 and my spellcheck context menu has vanished.

What if you aren't even given the check spelling or languages menu option yet the broken red line under mispelled words occurs and no spelling suggestions made when right clicking on those words?

Some additional information:

In my about:config i do have the following in bold: spellchecker.dictionary;en-US user set string en-US

https://developer.mozilla.org/en-US/docs/HTML/Controlling_spell_checking_in_HTML_forms?redirectlocale=en-US&redirectslug=Controlling_spell_checking_in_HTML_forms

(I want spellechecking EVERYWHERE, how do I implement that?)

Also there is this: http://trac.xinha.org/ticket/1119

I do not have xinha installed but the behavior is similar. I get the lines, but no options.

https://www.facebook.com/login.php?skip_api_login=1&api_key=302061903208115&signed_next=1&next=https%3A%2F%2Fwww.facebook.com%2Fdialog%2Foauth%3Fredirect_uri%3Dhttps%253A%252F%252Fwww.facebook.com%252Fconnect%252Flogin_success.html%26display%3Dpopup%26scope%3Dpublish_stream%252Cread_stream%252Cstatus_update%252Cuser_photos%252Cfriends_photos%252Cxmpp_login%26type%3Duser_agent%26client_id%3D302061903208115%26ret%3Dlogin&cancel_uri=https%3A%2F%2Fwww.facebook.com%2Fconnect%2Flogin_success.html%3Ferror%3Daccess_denied%26error_code%3D200%26error_description%3DPermissions%2Berror%26error_reason%3Duser_denied%23_%3D_&display=popup this link gets opened all the time and its annoying

Support for enablePrivilege has been removed in Firefox (Bug 546848), so it is no longer possible to get special elevated privileges by using this method.

If a web page (or local html page) is using this then they will have to use other ways get what they want like providing a Firefox extension.

Where is it possible to find an exension of this kind (if it exists)?

If you right click an image on a website and choose "save image", it will be downloaded again. It is already in the browser cache though. There are addons which let you pick it from the cache.

Why doesn't Firefox just save the cached image and instead downloads it again? There seems to be no obvious rationale to do it like that (and lots to use the cached version).

When using FF 19.0.2 on Ubuntu or Win7, to work on lab machines where an invalid self-signed cert has previously been "permanently stored", but has since changed. I (and much of the rest of the internet it would seem) frequently get caught in a catch 22 where an exception must be added to continue, but FF will not permit an exception to be added because "This site provides valid, verified identification. There is no need to add an exception".

I see this reported time & again in forums, but it seems as yet unfixed.

Doesn't seem to be an issue if one is rigorous and _always_ UN-checks "Permanently store this exception". To fix includes contortions through numerous work arounds, including clearing certs (hard, when cert list is full of self-signed localhost certs), history, cache, etc. until FF finally lets you "Confirm Security Exception".

I am at my wits end, and will have to start thinking of alternative browsers for day to day use.

FYI: IE & Chrome both let me confirm the damn exception and move on with my life.

Since upgrading to Firefox 18 from Firefox 17, the fonts look very blurry when a page is loading. This can be the same webpage, or a different webpage in another tab.

If the webpage loads quickly, it is difficult to see the blurry fonts. However, it is specially noticeable if I am reading an email in Gmail, and then start loading a page in the background (e.g. by middle-clicking a link in an email). The fonts of the email will become very blurry.

This does not happen if zoom is not enabled. However, obviously, I need zoom enabled as the fonts are too small otherwise.

just installed FF 18.0 on Linux (Centos 5.8) where 17.0.1 has been running fine.

I always install in a local (to my login) directory, and have a desktop launcher to start it. I download each .tar.bz2 FF package to a subdir, where I unpack it, overwriting whatever was already in the firefox directory in that location.

doing that, I get the error above. so I renamed the directory and did a fresh extraction into the firefox directory that tar creates when unpacking the archive. SAME PROBLEM.

moving that directory aside and re-extracting the 17.0.1 archive yields a working Firefox.

What can I do to solve this problem?

the troubleshooting info below came from FF 17.0.1, since FF18.0 doesn't work.

The only icon visible on the toolbar relating to the facebook messenger is the facebook logo icon, which allows to login/logout and show/hide the sidebar, the other 3 icons should be visible also but are not?

Any help appriciated, thank you.

I looked at all the previous solutions, some of which were the same., but they didn't answer my question.

Firefox 17.01 Ubuntu 12.04

If I go to Edit --> Preferences --> Advanced --> Encryption

it looks like 'View Certificates' is the likeliest place to look for the Security Exceptions resulting from me clicking 'Confirm Security Exception'.

I have looked at the five tabs on the next dialog box 'Certificate Manager', and the most likely looks like the 'Servers' tab.

On this tab, I can see that there is a button to 'Add Exception...', but nowhere to 'Show Exceptions', and the 'Add Exception...' button only provides means to add a new exception.

On my Linux Ubuntu system with Firefox 17.0.1 (and with several earlier releases, eg 12-16 I think) after a few weeks the tab triangle or arrowhead on one or more Firefox windows becomes defective. This problem is different from http://support.mozilla.org/en-US/questions/931515 in that if I restart the browser and resume the Firefox session the problem goes away for a while. (Note: I will wait until 05:00 UTC on 28 Dec before restarting FF to clear the current instance of the problem, in case anyone can suggest other relevant tests or data.)

The main symptoms are these: Triple click no longer slides the list of tabs all the way left or right. Double click appears to work once (from an extreme end). Single clicks step the tab list one tab at a time up to near an extreme end but then stop working before the extreme tab becomes visible. The following paragraphs give some more details about the symptoms.

When the problem occurs, tabs for new pages (eg reached by links from the right-most visible tab and opened in new tabs) do not become visible (that is, are not squeezed into the list on the tabs bar). The right-facing triangle, although not grayed out, does not make the tabs for the newly opened pages visible, but seems to have no effect. Clicking the X for the right-most visible tab closes that page and then one of the tabs that are "hidden out to the right" becomes visible, but other tabs out to the right remain inaccessible.

Meanwhile, the tab triangle arrowheads continue to work ok on other FF windows. For example, the left and right tab triangles in this current FF window (where 15 tabs are visible for 17 pages open in the window) are working fine. But in the FF window with the problem (where 15 tabs are visible for 40 pages open in the window) the triangles stop working one tab too soon: they don't give access to the leftmost or rightmost tab.

Note, clicking + (Open a new tab) jumped the list to the right end, with the new tab and an empty page visible; but after I clicked the left triangle three times, so that the new tab scrolled off to the right, no matter how many times I click the right triangle, that tab remains invisible, even though the webpage for it is still visible as the currently selected page. Opening a URL from command line acts the same way.

The system runs Linux 3.2.0-35-generic #55-Ubuntu 12.04.1 LTS x86_64 system with Firefox 17.0.1. I don't remember when I first encountered the problem but believe it was in 2011 (vs 2010) on a Fedora 7 system. Restarting FF has always cleared the problem. The command line "echo session $DESKTOP_SESSION desktop $XDG_CURRENT_DESKTOP; wmctrl -m" produces (in part)

   session ubuntu-2d desktop Unity
   Name: Metacity

"top" shows, in part:

 PID PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
3033  20   0 2158m 1.1g  38m S    7 28.7   3878:21 firefox

Note, I snipped 1200 lines of text from the Troubleshooting Information because the 50000 bytes in it pushed this post's length over the 30000 byte limit. All of the snipped lines started with "print.tmp.printerfeatures"

Clean profile. All plugins disabled. Only extensions

• Global Menu bar & Ubuntu mods
• The one I am trying to use Moonlight
• The Mozilla troubleshooter

To test using

• http://www.microsoft.com/silverlight/iis-smooth-streaming/demo/

that does nothing and offers to download silverlight. (IIRC it will then redirect to a moonlight download) This is to be expected of course as Moonlight is disabled

I will close this thread and continue discussion in /questions/950006after posting a screenshot.

Mods & Admins will note that if you click to edit this post you are able to observe that the troubleshhoting Information field is populated. But that information is not then visible on the left if you look at the more sytem information.

I just updated my FC14 installation. Firefox got kicked back to version 3. I want to install the latest version for all users on this machine. The only option appears to be to download the .tgz file but there are no instructions as to where to copy them, so all users get the update. Where can I find the RPM for the latest release?

I used to run Ubuntu 12.10 & Aurora 22 on my computer. Recently I've updated my Ubuntu to 13.04 beta, and ever since that happened, every website I try to go to (including Google search and so on...) shows "connecting..." for about 20 seconds before finally showing any content. My connection speed is 20 Mbps and Chrome works fine. Downgrading to Firefox 20.0 didn't solve it. Neither using the "Reset Firefox" feature nor safe mode solved it.

I absolutely love Firefox, been a fan of the browser for years and I'd hate permanently moving to Chrome. Help, please?

One hour ago I was happily watching youtube videos under Linux using Firefox 20.0 and flash 11.2. I just updated firefox and it is now blocking my flash and prompting me to update. The problem is I can't update because 11.2 is the LAST flash plugin for firefox, there won't be any other version.

Is there a way to prevent firefox from disabling my plugin?

Automatic updates do not work behind proxy on Windows machines. Fix this Alot of applications can do this but neither Firefox nor Thunderbird can. Noone cares for your stupid decisions about FirefoxOS replicating ChromeOs which is money on the wind as well. But why not do something useful for ........

Yes i know, linux doesn't have this problem and its ok there but microsoft isn't so generous thats why many companies have to think of dirty way doing things. Thats the only thing i ask, one more dirty thing for dirty os, thanks.

Edited by a moderator due to language. See the Rules & Guidelines .