Firefox-Hilfeforum

Where can I find offline installations for Firefox? Please don't say "https://www.mozilla.org/firefox/all/" like the previous 20 or so answers to this question. It simply doesn't work. All you get are Stub installers with no option to download only. I have gone as far as completely trying this and the only thing that I could achieve was to upgrade Firefox on the download computer. Why has this Full install thing been a never ending issue with Mozilla? Is it so hard to list these as well as the Installer version? Many people don't like installers.

I have just downloaded and installed firefox on my windows 7 computer. No errors on the install. When I try to launch Firefox I get this dialog box. Configuration Error - Failed to read the configuration file. Please contact your system

administrator.

I have to use Windows 10 (Home v:1703).

I'd like Firefox to be my default browser, but it's not listed in 'Choose an App'.

There's just Microsoft Edge listed, along with Internet Explorer, and an option to choose an app from the shop.

Microsoft Edge is also presumptuously shown as the default app to start with.

If Firefox isn't listed, how can I set it to be my default browser - or, isn't this 'allowed' in Windows 10 ?

I have Mozilla Firefox 49.0.1 (x86 en-US) installed on my 64bit Win10 computer. I want to install a new version 55.0.2 (x64 en-GB) but cannot uninstall the old version.

a tech cleaned up my computer and reloaded windows 10 and firefox but gone are my bookmarks accumulated over the years. I have the old memory drive and maybe I could take it back to him but I need instructions cause he does not seem to know how to do this. Or maybe I can try on my own. I have some bookmark data backed up but it's not up to date and not in a format that seems to open up...I also did not see any way to import back on that external drive file. I'd prefer instructions to recover from old disk drive.

Thanks

Hi all,

I rely heavily on FireFox (primarily for the multiple profiles and extensions it provides), so deperately trying to solve a problem I'm having. When I launch Firefox on my Mac (10.12.6 - Sierra), I immediately receive an error: "Firefox quit unexpectedly."

I've tried a number of different approaches to resolve including:

1) Starting Firefox in safe mode (by holding down the opt key on launch) - same error occurs 2) Removing Firefox from the Applications folder, and removing Firefox folder from the Application Support folder under the Library (which also removes all my profiles). Then reinstalled Firefox 57. - same error occurs 3) Tried installing older version of Firefox - version 56.0.2 (after removing previous installation as per step 2 above) - same error occurs 4) Tried a machine restart (very early on) - same error occurs.

I've run out of ideas, and hoping someone may be able to shed some light or suggest further troubleshooting options? Desperate to get it working again!

Cheers, Mark

The detailed error report (or at least the start of it) is here:

Process: firefox [1511] Path: /Applications/Firefox.app/Contents/MacOS/firefox Identifier: org.mozilla.firefox Version: 56.0.2 (5617.10.24) Code Type: X86-64 (Native) Parent Process:  ??? [1] Responsible: firefox [1511] User ID: 1342407268

Date/Time: 2018-01-08 14:25:11.798 +1100 OS Version: Mac OS X 10.12.6 (16G1114) Report Version: 12 Anonymous UUID: C6B6E4AB-1DE7-8875-3841-965087F69AAD

Time Awake Since Boot: 820 seconds

System Integrity Protection: enabled

Crashed Thread: 1

Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000106f5bc92 Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11 Termination Reason: Namespace SIGNAL, Code 0xb Terminating Process: exc handler [0]

I finally uninstalled Chrome and put in Firefox. Haven't used it in years.

On my screen most pages are "wide" -- so a horizontal scroll bar appears at the bottom of the page, and to see the very right hand side of the page, I have to scroll over.

I have tried the CTRL and - but all that does is shrink the text on the page. It doesn't make everything actually fit on the page horizontally. See the uploaded images of a question I found on this topic on this forum. Even though I've shrunk the font size down in the second one, I still see the horizontal scroll bar at the bottom. Even if I shrink it all the way to the minimum (which results in a tiny font I can't see), some of the page appears off-screen and has to be scrolled over to be seen.

I have tried for an hour to fix this and there doesn't seem to be any way. HELP!

We are currently having to role back to FireFox ESR 52.9 from the latest Quantum build of FireFox 60.3.0. Due to the fact that this version utilizes WebGl 2. Our older systems will not render one of the educational games we utilize in the our School District any longer due to the fact that Quantum uses WebGl 2 instead WebGl 1. We have tested and verified that ESR 52.9 renders the game properly.

I have been trying to disable the automatic update in utilizing the user.js file and the cfg file. The computers are apart of the domain. From what I have read only new user profiles will get the new user.js settings while all existing profiles will retain the old settings so we plan on reimaging these computers so all existing profiles will be wiped.

I have also seen users block the updates by changing the Host File which we will not do. Some sites state create a profile folder in the defaults folder other show place the user.js file in the pref folder. So I am lost at this point. I have followed this guide as well:

https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Enterprise_deployment_before_60#Changes_Over_Time

I have placed the 00_admin-prefs.js with the exact settings shown and have the mozilla.cfg file in the same folder as the js. both are in the defaults\pref

When trying to run FireFox I am am not getting:

Failed to read the configuration file. Please contact your Administrator. (I am the Admin). My domain creds give me admin privileges on all computers.

I know this folder also holds the channel-pref.js so I am not sure if I can add what I need to that file.

If someone would please help me determine what is going on. Why wont firefox copy the either a user.js file or utilize the cfg file I created to each new profile that gets created when logging into the computer.

Hello I recently downloaded the latest version of Firefox 54 for Linux. Everything worked great however even after making it the default browser links from external programs such as Pidgin won't open in a new tab in firefox. Instead a new window will pop-up with my home page. I've tried solving it by uninstalling the other version of firefox I downloaded from the repository (Firefox 45)

I fear it might be because I didn't really install it, instead I just ran the file directly form the download labed just firefox. It seems to be working fine and there was no README file so I assumed that was the way it should've been done.

When I try to set Firefox as my default browser in Windows 8, the options menu goes to the Set Associations menu and won't set it as the default browser. In the instructions on your website for the alternate way to set it it only gives directions for Windows 7, Vista and XP not Windows 8. This is most annoying. I have tried reinstalling Firefox but that didn't work.

Hello there. I tried to update Firefox to 58.01, but since updating my antivirus appears to block the firefox.exe.

I uninstalled Firefox completely, then tried to reinstall it but again my antivirus blocked it before I could open firefox.exe

I reinstalled Firefox again, this time disabling my antivirus and Firefox.exe appeared to work again, I was browsing and redownloading my addons. Once the antivirus enabled itself again after 10 minutes, the same problem happened. Firefox shortcuts couldn't find the Firefox.exe, and in the main Mozilla folder, firefox.exe had become firefox.exe.sig

When trying to uninstall it after this happens, I can't uninstall it through normal procedures unless I rename firefox.exe.sig to firefox.exe (which is also unable to run, says it isn't the proper version when it is)

Would appreciate some help here, thank you

I have been happy with FF v43 until I decided to update to v50. It installed but would not launch, saying "mozglue.dll" was missing. I found on Google that some other users had the same problem, with some advice that AVG might be the problem. I found the mozglue.dll was in fact in Program Files - and repeated uninstalls and reinstalls of FF v50 with AVG also uninstalled made no difference. I (mistakenly) found that reusing my original install file of v43 then produced the same result - until I discovered that FF was updating my v43 to v47 within seconds of launching. I finally beat FF automatic updating to get to the Option "do not update," so I have a working, albeit old version of Firefox. Any advice would be welcome - while I fiddle with various workarounds of annoying warnings about my FF being out of date and its knock-on affect on add-ons etc. PS: I am very happily (and stubbornly) Windows XP Professional 64-bit sp2, but I suggest it's not my operating system at fault because other sufferers use a variety of OS. Thanks, Kevin in the UK

Click on a web that needs java ... get the popup - activate plugin ... I agree Then it says Plugin out of date and takes me to Oracle site and downloads installer Run & install .... Start browser again .... go to site Tells me plugin is needed - install plugin ... I select yes Then get popup to 'run java runtime environment' I accept Then I get popup 'plugin not available' do I want manual install I select yes and it takes back to Oracle web site and it starts all over again.

Keeps going around the loop.

This is on PC version W64 sp1 Firefox ver 34.0.5

I had been running the latest version (52.8) of Firefox supported under Windows XP, but now I can no longer run Firefox, and, worse, cannot reinstall it.

On June 7, Firefox lost all the tabs from the previous day. This happens from time to time, and it's simplest first to try restoring Windows to the previous checkpoint: this is sometimes successful in that Firefox then does display tabs. I restored Windows to the then most recent checkpoint, June 6, only to find the attempted cure worse than the disease: Firefox would not even start. There were no messages of any type.

Attempts either to create a new Firefox profile (-p) or to start Firefox in safe mode (Shift) were no different. Windows Task Manager showed no evidence, however transient, of either any Application or Process for Firefox. Again, there were no messages of any type.

Restoring Windows to still earlier dates produced the same situation: Firefox would not run, exactly as after the initial restoration.

Deleting the (only) Firefox profile made no difference.

All subsequent attempts to reinstall Firefox--whether or not Firefox had been uninstalled--have been equally unsuccessful, and equally mute.

Program Firefox Installer.exe (306 KB in size, downloaded from https://stubdowloader.cdn.mozilla.net, for example) begins a process which occupies either 2,484KB or 2,488KB of storage, but which does nothing. I tried several Firefox installers (all downloaded via various links from Mozilla): all are bit-for-bit identical, albeit with one occasional exception, i.e., sometimes a string is "duckduckgo.", and sometimes it's "getfirefox-". None of these installers produces any message, and each creates a process which occupies c. 2.5MB and then does nothing.

Knowing that it would not run successfully under Windows XP, I nonetheless tried later Firefox installers (e.g., Firefox Setup 60.0.2.exe downloaded from https://download-installer.cdn.mozilla.net). Rather than my receiving the expected message saying that 60.0.2 isn't supported on Windows XP, this installer, too (once it's used some amount of both CPU and storage), is simply suspended occupying 2,544KB and staying silent.

The following may or may not be relevant.

1. Running any of these installers (and also firefox.exe itself) from a CMD window confirms instant termination. Even from the CMD window, it remains the case that the installers create a process occupying c. 2.5MB. (I didn't try Firefox Setup 60.0.2.exe from the CMD window.)

2. Things are essentially the same in Windows Safe Mode, with the following differences. (a) The 306 KB installers occupy slightly less storage: c. 2.2 MB instead of c. 2.5 MB. (2) Clicking on the Firefox shortcut and selecting "Run As" with the same account produces the message "A device attached to the system is not functioning"; a 'Web search for his message turns up nothing relevant.

The current situation is that Windows was restored to the most recent checkpoint, June 6, as in the second paragraph (although obviously Windows has taken later checkpoints, so that the June 6 checkpoint has been overwritten), and Firefox is installed. Firefox still won't run, and none of the installers produces any output.

FWIW, I'd wondered whether Firefox might simply be refusing to run any longer on Windows XP, but recent tests show that the Firefox-based TOR browser runs from a memory stick just as normal.

I'm not great with computers, so please help me if anyone can. I've been searching for a solution for 5 hours now and I'm desperate...

My Firefox has been running a little slow the last couple of days, and sometimes temporarily stops working a couple of seconds when I'm trying to load a page. So I tried to refresh firefox through the Troubleshooting-page. After doing that, I was gonna reinstall my Addblock Plus, but when visiting about:addons, the page looked weird. The text was all in the Time New Roman-font, and there were no pictures. It was like the page hadn't loaded properly. I refreshed Firefox again, but this time I deleted all Cache and Cookies and the saved internet information. But the problem remained. I tried to install Adblock anyway, but it didn't work.

I then uninstalled Firefox from the computer and downloaded the latest version. The problem still remained.

I was now suspecting that maybe I had picked up some nasty virus or something, so I reset the computer two weeks to a date where I was pretty sure it didn't have these problems. But instead of solving my problem, it gave me another one: I couldn't access Twitter. According to Firefox, the certificate wasn't correct and the only option available was "Get me out of here". The technical information said that this was the problem: sec_error_unknown_issuer

At one point, even Google got the same certificate error, and another time I could access Twitter, but it was in the same "Times New Roman"-view with only basic text and no images. And ALL Firefox related pages were like that too.

I have temporarily fixed the problem by asking my antivirus software (ESET NOD 32) to deactivate its HTTP Control, but that doesn't seem like a safe solution to me. I'd just like to know WHAT THE HECK is going on, and how can I properly fix this?

Info: -I'm using Windows 7

I have tried: -Deleting all Cache and Cookies (together with all other internet history) -Refreshing Firefox -Uninstalling and re-installing Firefox -Deleting the Cert8 file -Restarting the computer (multiple times) -Scanning my computer for virus (Using ESET NOD32)

I don't understand what could cause Firefox to not being able to load its own sites properly... Or why Google and Twitter's certificates suddenly stopped working after reinstalling Firefox. Any ideas or help are appreciated. Especially if you keep it simple, since I'm not awesome at computers and English is not my native language .

Hello everybody, i have just finished a big long windows update and since then i cannot open the firefox browser. Even if i download a new firefox version i cannot open it: In the 2 instances, a window pops up with this message "<window id="main-window". Thank you for your time and your help. Patrick

There is an outdated page on the Adobe Flash web site being blocked by Firefox 35.0.1 on Windows 7. Version 16..0.0.235 of Flash is labeled a security risk, "Always activate" is greyed out. I was on the Plugins page, and there I clicked the update now linktext. I was advised that all older versions of Flash in the version 11 range are blocked. Nowhere to go from there. (My screenshot has a piece off the Plugins page above the resulting page when I clicked on the indicated link.)

The outdated page being blocked was allowed and I was able to run through the download procedure, but in the end I had an error. I repeatedly tried downloading install_flashplayer16x32_mssd_aaa_aih.exe, which downloads OK, and when I run it it downloads and installs Adobe Flash, then says Finish and "There was an error."

Glary Utilities software updater updated Internet Explorer's Flash, said nothing of Firefox, now I know why. This is a mess.

I opened up firefox -p and went to the new blank profile I had created sometime back. It was happily running a fully-enabled version 11 of Flash (I bet that wouldn't last long as my browser bites me in the butt and disables it).

Firefox -p and I created a new profile today. It has this crippled version 16.0.0.235 of Flash.

It appears that Mozilla has an outdated page telling me that all old versions in the range of version 11 are blocked. No word there about the more recent versions.

From what else I've read, others are turning to other browsers and coming up with a bad Flash, too. I only have Firefox (well, Internet Exploder, which I discounted as a piece of rubbish ever since they came out with IE 7).

Any advice? Thank you.

This is the message I get:

XML-parsefout : onjuist gevormd Locatie: chrome://browser/content/browser.xul

Regelnr.:3652, kolom 33:

keepbroad#astttributeswhen-customizing="true"