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browser.startup.homepage

When I open Firefox, I receive the following: Firefox can’t find the file at jar:file:///C:/Program Files/Mozilla Firefox/browser/omni.ja!/chrome/en-US/locale/branding/b… (meer info)

When I open Firefox, I receive the following: Firefox can’t find the file at jar:file:///C:/Program Files/Mozilla Firefox/browser/omni.ja!/chrome/en-US/locale/branding/browserconfig.properties. I have seen the help that suggest I go to "about:config" and the browser.startup.homepage, which I have done. But the suggestion doesn't state what I should do once there. What do I do to the browser.startup.homepage?

Gevraagd door rand9149, 1 maand geleden

Laatst beantwoord door cor-el, 1 maand geleden

  • Opgelost

Firefox won't open, nor will Firefox Profile Manager

I'm not sure what I can do to fix the problem; the answer I've found uses the Profile Manager and I can't access it, it'll open for a split second then close again. … (meer info)

I'm not sure what I can do to fix the problem; the answer I've found uses the Profile Manager and I can't access it, it'll open for a split second then close again.

Gevraagd door tommyhandley, 2 maanden geleden

Beantwoord door AMAN ARYAN, 2 maanden geleden

  • Opgelost

No window opens when Firefox is clicked on, but runs in the background for each time it is clicked. Cursor repeatedly flickers or spins after opening.

I work in IT and multiple users are having this same issue. It seems to have started at the same time about a week ago. When clicking on Firefox, no window opens and the … (meer info)

I work in IT and multiple users are having this same issue. It seems to have started at the same time about a week ago. When clicking on Firefox, no window opens and the cursor begins to rapidly flicker or spin. There is no error message given. When checking Task Manager, there are multiple instances of Firefox running. Trying to "End Task" on each instance proves futile because it seems that they are constantly refreshing (which is probably why the cursor flickers). Trying to run the command "taskkill /f /im /firefox.exe" sometimes works and sometimes doesn't, even in Administrative mode. The only sure fire ways to get the cursor to stop flickering and/or close the program is to restart the machine or uninstall Firefox. However, if Firefox is clicked on again after restarting, it goes back to flickering and no window ever opens.

Things I've tried:

1. Using "End Task" in Task Manager

2. Running CMD and using taskkill /f /im /firefox.exe multiple times.

3. Restarting the machine.

4. Clearing ALL temp files from the machine.

5. Uninstalling and Reinstalling Firefox

6. Uninstalling, deleting Mozilla folders from Program Files, Program Files (x86), and Reinstalling

7. Checking to make sure Firefox is not blocked by the firewall or anti-virus.

8. Uninstalling, deleting Mozilla folders from Program Files and Program Files (x86), Deleting Profile data from AppData\Local\Mozilla\Firefox, then Reinstalling

Nothing seems to be working. Any ideas?

Gevraagd door CoNiGMa, 3 maanden geleden

Beantwoord door CoNiGMa, 3 maanden geleden

  • Opgelost
  • Gearchiveerd

Mozilla Crash Reporter has been appearing intermittently and now cannot open Firefox at all

Initially the Crash Reporter window would open occasionally, but clicking on ‘Try Again’ opened the programme. Now it will not open at all. I’ve completely unistalled the… (meer info)

Initially the Crash Reporter window would open occasionally, but clicking on ‘Try Again’ opened the programme. Now it will not open at all. I’ve completely unistalled the programme and installed the very latest version, but to no avail.

My crash ID isbp-cf98f93e-6ab7-4a52-bdf3-f0b940200110

Gevraagd door MikeP., 7 maanden geleden

Beantwoord door MikeP., 7 maanden geleden

  • Opgelost
  • Gearchiveerd

Profile can't be created

Firefox has opened successfully for years. Today, I double clicked on the icon, and it will not launch. I uninstalled and reinstalled it two three times and no luck. … (meer info)

Firefox has opened successfully for years. Today, I double clicked on the icon, and it will not launch. I uninstalled and reinstalled it two three times and no luck. So I then tried performing the profile creation and got the following result.

Profile couldn’t be created. Probably the chosen folder isn’t writable. [Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIToolkitProfileService.createProfile]" nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)" location: "JS frame :: chrome://mozapps/content/profile/createProfileWizard.js :: onFinish :: line 181" data: no]

Not sure how to solve this.

Gevraagd door User Hostile, 11 maanden geleden

Beantwoord door FredMcD, 11 maanden geleden

  • Gearchiveerd

windows 10 FF67 won't start

FF updated to version 67. On a couple of Windows 10 machines so far, FF won't start. Double-clicking the icon does not work. Task Manager will show two instances of FF… (meer info)

FF updated to version 67. On a couple of Windows 10 machines so far, FF won't start. Double-clicking the icon does not work. Task Manager will show two instances of FF and the EXE closes out after a minute, and the program does not start. Rebooting does not help. The Win10 versions experiencing issues after updating to version 67 are a Win10 1703 and a Win10 1803 machine.

Gevraagd door Majordomo383, 1 jaar geleden

Laatst beantwoord door FredMcD, 1 jaar geleden

  • Opgelost
  • Gearchiveerd

Session restore stopped working since last update

No matter how I close Firefox, (X, File->Exit, Menu->Exit), if I start it again it doesn't automatically restore the previous session. If I click on "Menu->resto… (meer info)

No matter how I close Firefox, (X, File->Exit, Menu->Exit), if I start it again it doesn't automatically restore the previous session.

If I click on "Menu->restore previous session" it does restore it.

Of course "Restore previous session" is enabled.

Why did it stop working, what changed?

Gevraagd door Indan, 1 jaar geleden

Beantwoord door Indan, 1 jaar geleden

  • Gearchiveerd

"Firefox already open" msg prevents launching browser

Using with OS 10.12.6 Tried using Refresh Firefox, then was unable to open the browser, with a message "Close Firefox" indicating the a copy as already open. I have trie… (meer info)

Using with OS 10.12.6 Tried using Refresh Firefox, then was unable to open the browser, with a message "Close Firefox" indicating the a copy as already open. I have tried rebooting, deleting and reloading Firefox, opening in Safe mode, etc, without success.

Help!

Gevraagd door dkalman, 1 jaar geleden

Laatst beantwoord door FredMcD, 1 jaar geleden

  • Gearchiveerd

firefox.desktop: [Gecko_IOThread] WARNING: pipe error (67): Connection reset by peer

Hello: The above error occurs at every boot of an up to date Arch linux system. `systemctl` spams my `syslog` with (complete error message): firefox.desktop[1772]: … (meer info)

Hello: The above error occurs at every boot of an up to date Arch linux system. `systemctl` spams my `syslog` with (complete error message):

     firefox.desktop[1772]: [Parent 1772, Gecko_IOThread] WARNING: pipe error (67): Connection reset by peer: file /build/firefox/src/mozilla-unified/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 357

I have no idea about what it may be. Booting involves launching mozilla firefox automatically and along with it opening multiple tabs inherited from the last session. Any help welcome. -ced.

Gevraagd door Cbhihe, 1 jaar geleden

Laatst beantwoord door Cbhihe, 1 jaar geleden

  • Gearchiveerd

Firefox won't open at all >:( I've tried everything!

I am using an HP laptop and running the latest version of Windows. Firefox worked just fine about a week ago. However, after rebooting my computer the browser will not op… (meer info)

I am using an HP laptop and running the latest version of Windows. Firefox worked just fine about a week ago. However, after rebooting my computer the browser will not open at all anymore and nothing is working. I click the app and nothing happens. I've tried running it as an administrator. I've tried using the RUN commands, nothing. I've tried uninstalling and each time it tells me that Firefox must first be closed before I can uninstall, but it never opens anything in the first place for me to be able to close it and so I have to reboot my computer all over again to even uninstall the app. This is extremely frustrating because certain online applications I use for work are only compatible with Firefox. I've tried deleting temp folders in the program data, nothing. Please help! You have no phone support and this is a very pressing issue!

Gevraagd door jstnrssll, 1 jaar geleden

Laatst beantwoord door FredMcD, 1 jaar geleden

  • Gearchiveerd

Why does Firefox keep crashing?

Since several days Firefox crashes after only a few minutes of uses regardless of the site on which I am on. I tried to restart in Safe Mode but nothing has changed. I tr… (meer info)

Since several days Firefox crashes after only a few minutes of uses regardless of the site on which I am on. I tried to restart in Safe Mode but nothing has changed. I tried to follow the instructions that are in the "Help" tab of Firefox but I see nothing concrete. Just before it started crashing my Kaspersky antivirus warned me that malware might want to harm my system.

Gevraagd door LanaFx, 1 jaar geleden

Laatst beantwoord door FredMcD, 1 jaar geleden

  • Opgelost
  • Gearchiveerd

Firefox always closes soon after launching in a computer lab.

Firefox keeps quitting after launching in a computer lab. It's very strange. Is there a log? about:crashes gives nothing. This is windows 10 1709. It doesn't matter … (meer info)

Firefox keeps quitting after launching in a computer lab. It's very strange. Is there a log? about:crashes gives nothing. This is windows 10 1709. It doesn't matter what Firefox version, 32 or 64 bit. I can't find anything in process monitor.

Gevraagd door jszabo3, 1 jaar geleden

Beantwoord door jszabo3, 1 jaar geleden

  • Gearchiveerd

update to version 66.0.2 and now I can't open firefox

So, it wouldn't work, and I finally deleted and reinstalled Firefox. It is still this version, and it won't open. I now can't open my gmail or google calendar, either. … (meer info)

So, it wouldn't work, and I finally deleted and reinstalled Firefox. It is still this version, and it won't open. I now can't open my gmail or google calendar, either. I think this started on 3/27. Can anyone help?

Gevraagd door ltt121, 1 jaar geleden

Laatst beantwoord door FredMcD, 1 jaar geleden

  • Gearchiveerd

How to stop Firefox from making automatic requests on startup

Every time I start Firefox with a new profile, despite trying in several ways to make this not happen, Firefox automatically makes a series of requests to URL's and will … (meer info)

Every time I start Firefox with a new profile, despite trying in several ways to make this not happen, Firefox automatically makes a series of requests to URL's and will retry them repeatedly when those requests fail.

``` GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 POST https://shavar.services.mozilla.com/downloads?client=Firefox&appver=60.2&pver=2.2 GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 GET https://search.services.mozilla.com/1/firefox/60.2.2/default/en-US/AU/default/default/nov17-1 POST https://shavar.services.mozilla.com/downloads?client=Firefox&appver=60.2&pver=2.2 ... (and so on) ```

I am trying to make this not happen. I'm ideally looking for a setup where Firefox will make no requests at all without me explicitly telling it to but just eliminating the two requests above would be a great start!

Here's what I've tried so far:

1. Uncheck "Provide search suggestions" in `about:preferences#search`

2. I've followed these instructions --- https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections

2. Here are a combination of select settings from my `user.js` preferences file that I put in to place before opening Firefox in my attempts to stop this. Some of these may or may not be relevant but I'm including them so you have some idea what I've tried: ``` user_pref("app.update.enabled", false); user_pref("browser.tabs.crashReporting.sendReport", false); user_pref("browser.crashReports.unsubmittedCheck.enabled", false) user_pref("browser.search.update", false); user_pref("browser.search.suggest.enabled", false); user_pref("extensions.systemAddon.update.enabled", false); user_pref("extensions.update.enabled", false); user_pref("browser.safebrowsing.downloads.remote.enabled", false); user_pref('browser.search.geoSpecificDefaults.url', ); user_pref('media.gmp-manager.url', ); user_pref('browser.safebrowsing.provider.mozilla.updateURL', ); user_pref('browser.safebrowsing.provider.mozilla.gethashURL', ) user_pref('browser.search.cohort', ); user_pref("services.sync.prefs.sync.browser.urlbar.suggest.searches", false); ``` Any ideas?

Gevraagd door unverified_contact, 1 jaar geleden

Laatst beantwoord door cor-el, 1 jaar geleden

  • Gearchiveerd

New firefox 66 wont start but 58 works fine.

Windows 10 1809. Upgraded to new FF and not working at all. I turn off all proccess from task manager and then it open but in white screen as in picture. Option button no… (meer info)

Windows 10 1809. Upgraded to new FF and not working at all. I turn off all proccess from task manager and then it open but in white screen as in picture. Option button no work.Nothing works.Only help,about troubleshoot work. Reset doesnt help. Clean 100% fresh install doesnt work. (deleted everything has to do with mozilla from files and registry.) Even with restart. SoS!!!! dont ask me stupid questions because when installing 58 version works fine till auto update that mess things up again.

Gevraagd door eyuri, 1 jaar geleden

Laatst beantwoord door jscher2000, 1 jaar geleden

  • Gearchiveerd

firefox won't launch in Windows 7 after update

Since the last update to Firefox 65, it won't launch on my Windows 7 64 bit. It shows in the running process. I've gone through all the forums and helps. I've checked com… (meer info)

Since the last update to Firefox 65, it won't launch on my Windows 7 64 bit. It shows in the running process. I've gone through all the forums and helps. I've checked compatibility, cleared out my allowable programs and re-entered, checked my Windows defender, plus everything else I could find. It would not open in safe mode although I tried something once (no idea what) and it did open briefly to save my bookmarks but then I couldn't get out or back in. I'm at a loss what to do at this point and I really like Firefox. I'm not savvy with computers but I know some and can follow directions. Firefox worked fine until the update and nothing has changed on my computer since that point except downloading Chrome to have a browser.

Gevraagd door Suiterain, 1 jaar geleden

Laatst beantwoord door FredMcD, 1 jaar geleden