Can't open Firefox - it says it is already running and must be closed first

For 2 days now I have a big problem! Firefox froze, and I ended up closing it with the programme manager. When I wanted to reopen I got this: Firefox est déjà en cours d’… (cytajśo wěcej)

For 2 days now I have a big problem! Firefox froze, and I ended up closing it with the programme manager. When I wanted to reopen I got this: Firefox est déjà en cours d’exécution mais ne répond pas. L’ancien processus Firefox doit être arrêté pour pouvoir ouvrir une nouvelle fenêtre. BUT - it refuses to close when I click on "close" (fermer).

I tried the programme manager - but Firefox isn't shown as being open.

I've made a back up of my profile. I can't delete parent.block ... I'm told "Firefox is running already" and I must close it. Every troubleshooting step comes to the same barrier to completing it! Almost all guide one from an open Firefox page - and I can't open Firefox! I can't "uninstall" for the same reason!

All my passwords are in Firefox - and I can't import them to Chrome without closing Firefox completely! I'm going mad - urgent need to access my passwords!

Pšašany wót wužywarja Evelyn B pśed 4 dnjami

Slědne wótegrono wót wužywarja Evelyn B pśed 2 dnjoma

Many web pages now 'flash' when opened in FF (128.0.3 64bit W10).

Many web pages now 'flash' when opened in FF (128.0.3 64bit W10). ALL graphics images turn on then off in synchrony. Text does not seem to be affected. Disabling HW acce… (cytajśo wěcej)

Many web pages now 'flash' when opened in FF (128.0.3 64bit W10). ALL graphics images turn on then off in synchrony. Text does not seem to be affected. Disabling HW acceleration has no effect.

sample web page: https://www.cnbc.com/2024/08/01/eu-ai-act-goes-into-effect-heres-what-it-means-for-us-tech-firms.html This problem does NOT occur using Google Chrome. [One difference noted seems to be the TOP of the web page has an mp4 video advert. It displays in Chrome, but not in ffox]

Partial Browser Console Report: Listener for event 'frame' did not return a promise. 2 event-emitter.js:248:23 Error while destroying front: inspector Error: Connection closed, pending request to server0.conn0.process46//inspectorActor71, type getWalker failed

Request stack: request@resource://devtools/shared/protocol/Front.js:299:14 generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:47:19 _getWalker@resource://devtools/client/fronts/inspector.js:84:30 initialize@resource://devtools/client/fronts/inspector.js:73:12 <pre> baseFrontClassDestroy resource://devtools/shared/protocol/Front.js:105 destroy resource://devtools/shared/protocol/Front.js:73 destroy resource://devtools/client/fronts/inspector.js:128 destroy resource://devtools/shared/protocol/Pool.js:211 baseFrontClassDestroy resource://devtools/shared/protocol/Front.js:109 _onTargetDestroyed resource://devtools/shared/commands/target/target-command.js:369 _destroyExistingTargetsOnTargetSwitching resource://devtools/shared/commands/target/target-command.js:275 _onTargetAvailable resource://devtools/shared/commands/target/target-command.js:205 _emit resource://devtools/shared/event-emitter.js:242 emit resource://devtools/shared/event-emitter.js:186 emit resource://devtools/shared/event-emitter.js:330 _onTargetAvailable resource://devtools/client/fronts/watcher.js:60 _emit resource://devtools/shared/event-emitter.js:242 emit resource://devtools/shared/event-emitter.js:186 emit resource://devtools/shared/event-emitter.js:330 onPacket resource://devtools/shared/protocol/Front.js:348 onPacket resource://devtools/client/devtools-client.js:458 send resource://devtools/shared/transport/local-transport.js:67 makeInfallible resource://devtools/shared/ThreadSafeDevToolsUtils.js:103 makeInfallible resource://devtools/shared/ThreadSafeDevToolsUtils.js:103

target-mixin.js:474:19 Failed to start [root-node] legacy listener for target null Error: Connection closed, pending request to server0.conn0.process46//inspectorActor71, type getWalker failed

Request stack: request@resource://devtools/shared/protocol/Front.js:299:14 generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:47:19 _getWalker@resource://devtools/client/fronts/inspector.js:84:30 initialize@resource://devtools/client/fronts/inspector.js:73:12 <pre> baseFrontClassDestroy resource://devtools/shared/protocol/Front.js:105 destroy resource://devtools/shared/protocol/Front.js:73 destroy resource://devtools/client/fronts/inspector.js:128 destroy resource://devtools/shared/protocol/Pool.js:211 baseFrontClassDestroy resource://devtools/shared/protocol/Front.js:109 _onTargetDestroyed resource://devtools/shared/commands/target/target-command.js:369 _destroyExistingTargetsOnTargetSwitching resource://devtools/shared/commands/target/target-command.js:275 _onTargetAvailable resource://devtools/shared/commands/target/target-command.js:205 _emit resource://devtools/shared/event-emitter.js:242 emit resource://devtools/shared/event-emitter.js:186 emit resource://devtools/shared/event-emitter.js:330 _onTargetAvailable resource://devtools/client/fronts/watcher.js:60 _emit resource://devtools/shared/event-emitter.js:242 emit resource://devtools/shared/event-emitter.js:186 emit resource://devtools/shared/event-emitter.js:330 onPacket resource://devtools/shared/protocol/Front.js:348 onPacket resource://devtools/client/devtools-client.js:458 send resource://devtools/shared/transport/local-transport.js:67 makeInfallible resource://devtools/shared/ThreadSafeDevToolsUtils.js:103 makeInfallible resource://devtools/shared/ThreadSafeDevToolsUtils.js:103

resource-command.js:1118:15 Unable to find target with innerWindowId:15032385981 watcher.js:188:13 Listener for event 'frame' did not return a promise. 5 event-emitter.js:248:23 Unable to find target with innerWindowId:15032386002 watcher.js:188:13 Unable to find target with innerWindowId:103079215105 watcher.js:188:13 Error: Got notified about channel 15032387338 more than once.

   onNetworkEvent resource://devtools/server/actors/resources/network-events.js:282
   #createNetworkEvent resource://devtools/shared/network-observer/NetworkObserver.sys.mjs:815
   <anonymous> resource://devtools/shared/network-observer/NetworkObserver.sys.mjs:407
   makeInfallible resource://devtools/shared/DevToolsInfaillibleUtils.sys.mjs:43

DevToolsInfaillibleUtils.sys.mjs:22:13 Listener for event 'frame' did not return a promise. 6 event-emitter.js:248:23 Security state 0 has no known STATE_IS_* flags. DevToolsInfaillibleUtils.sys.mjs:22:13 Unable to find target with innerWindowId:15032386023

Pšašany wót wužywarja robin2420J pśed 2 dnjoma

Matrix and SSO

I haven't loggued in to my matrix account in a long time. I didn't remember which way i used, so i used my email adress, which created a new account. Trying to log out an… (cytajśo wěcej)

I haven't loggued in to my matrix account in a long time. I didn't remember which way i used, so i used my email adress, which created a new account. Trying to log out and in again didn't showed me the other options such as login with mozilla (sso), so i deleted that new account (@sebbu2:mozilla.org). Meanwhile, I'm not sure i even am loggued out properly, since i get the same message when i try the original account (@sebbu:mozilla.org) that used mozilla sso.

Pšašany wót wužywarja sebbu pśed 2 dnjoma

Firefox home button does not direct ot actual home, but keeps refreshing current page.

Ever since the last update, I can't even use the home button anymore, as every time I click on it which I set as google's main search page, all it does is keep refreshing… (cytajśo wěcej)

Ever since the last update, I can't even use the home button anymore, as every time I click on it which I set as google's main search page, all it does is keep refreshing the current page I'm on, instead of redirecting to the page set on the home button, I have to rapidly click the home button around 30 times before it actually shows the google search page. I have tried everything short of completely reformatting the PC re-installing windows, and re-installing Firefox, I have even used Revouninstaller to completely remove Firefox and all files associated with it, and re-installed a clean version from the Mozilla site, dragged the home button to the tool bar, set the home button to google.com, and also set the opening page to google, then closed Firefox, waited around 30s, then started it up again, which did load up google's home page, then I went to youtube, played around there for a little while, then I clicked the home button, and yep, just as I suspected, it refresh the youtube page, I clicked it again, and yet again it refreshed the yourtube page, so I rapidly kept clicking the home button, until eventually the google home page appeared.

Pšašany wót wužywarja usalabs pśed 2 dnjoma

How do I stop Firefox from logging me out of all websites?

My Laptop I only use once in a while because I am mostly at my desktop. When I didn't use the laptop for some time, I am logged out of ALL websites. Google, Facebook, Twi… (cytajśo wěcej)

My Laptop I only use once in a while because I am mostly at my desktop. When I didn't use the laptop for some time, I am logged out of ALL websites. Google, Facebook, Twitter, Instagram, Reddit, eBay, Amazon, several smaller sites EVERYWHERE. It's like I am on a new install.

How do I stop that behavior? It's certainly not an issue of the websites because I am logged out consistently everywhere. Why is Firefox deleting the cookies even if they are infinite?

My laptop is secured, it has strong passwords and an encrypted harddisk.

Pšašany wót wužywarja bxyify pśed 2 dnjoma

slowness

My Firefox is very slow compared to other browsers I use. Chrome for example. It takes much longer to load a web page, especially my home page compared to Chrome. What co… (cytajśo wěcej)

My Firefox is very slow compared to other browsers I use. Chrome for example. It takes much longer to load a web page, especially my home page compared to Chrome. What could be causing the long wait time to load web pages? Can someone help? Thank you.

Pšašany wót wužywarja sciencemagic pśed 2 dnjoma

latest update of Firefox

Since the latest Firefox update, a little notification icon about autofill addresses has appeared to the left of the web address line. It keeps asking if I want to save … (cytajśo wěcej)

Since the latest Firefox update, a little notification icon about autofill addresses has appeared to the left of the web address line. It keeps asking if I want to save an address that I entered in someone's contact, so no I never want to save that in my autofill, but it doesn't give me that option. Has this happened to anyone else?

Pšašany wót wužywarja livingsed pśed 2 dnjoma

some popup windows and post-order features of Instacart don't work in firefox, but do in Chrome

I have had trouble with Instacart features such as adding items to a pending order, or leaving feedback or a tip for a shopper. Most of the same Instacart features seem … (cytajśo wěcej)

I have had trouble with Instacart features such as adding items to a pending order, or leaving feedback or a tip for a shopper. Most of the same Instacart features seem to work correctly in Chrome, but of course I would rather use Firefox. But having said that, some don't work properly in Chrome either!

Pšašany wót wužywarja dana30 pśed 2 dnjoma

Firefox keeps asking me if I want to save an address that I entered in a contact and I can't get it to stop.

Firefox keeps asking me if I want to save an address that I entered in a contact and I can't get it to stop. It doesn't have NEVER as a choice. I tried saving it and it w… (cytajśo wěcej)

Firefox keeps asking me if I want to save an address that I entered in a contact and I can't get it to stop. It doesn't have NEVER as a choice. I tried saving it and it went in my autofill, but I don't want it there. I deleted it and then it started asking me if I want to save it again. HELP!

Pšašany wót wužywarja livingsed pśed 2 dnjoma

What happens to changes when I Sync?

Let’s say I use Manage Bookmarks to rearrange my bookmarks into different folders & also delete a lot of old bookmarks on my desktop computer. Are all the changes I j… (cytajśo wěcej)

Let’s say I use Manage Bookmarks to rearrange my bookmarks into different folders & also delete a lot of old bookmarks on my desktop computer. Are all the changes I just made immediately reflected in my Mozilla account if Sync is on? My (vague) understanding is that the Sync configuration in my Mozilla account acts as a master configuration; does that mean the Mozilla account configuration will overwrite the configuration on my laptop when it Syncs? Or will the laptop’s configuration instead be combined with the desktop’s configuration in the Mozilla account, thereby creating duplicate bookmarks in different folders & recreating all the old bookmarks I so painstakingly removed?

Pšašany wót wužywarja Eric Patterson pśed 2 dnjoma

Using Bing Home Page

I am trying to use the Bing homepage for their daily images. When I open Fire Fox, the Bing homepage comes up but has a news popup along the bottom of the screen. I have … (cytajśo wěcej)

I am trying to use the Bing homepage for their daily images. When I open Fire Fox, the Bing homepage comes up but has a news popup along the bottom of the screen. I have unchecked the option for the "news and interests" from the 3 bar menu on the upper right and it goes away. But, when I open Firefox again, the news popup comes back up. Anyone have any idea how to fix this? This did not used to happen before I had to reinstall Firefox due to problems I was having. Thanks for any help.

Pšašany wót wužywarja georgiebc06 pśed 2 dnjoma

Desktop Freezes when Opening Firefox or Interacting with Tab

When opening Firefox, the window shows a white screen indefinitely, and the cursor shows loading whenever it is held above it. During this period, the desktop and taskbar… (cytajśo wěcej)

When opening Firefox, the window shows a white screen indefinitely, and the cursor shows loading whenever it is held above it. During this period, the desktop and taskbar of my computer freeze completely. There are no reactions to hovering my mouse over taskbar icons, clicking anywhere results in a loading cursor, and other windows are no longer usable either. This carries over through multiple desktops and monitor extensions. This is resolved with a couple presses of the Windows key on my keyboard, which after a couple of seconds, turns the entire screen black apart from the Firefox window and reloads the desktop and taskbar. Doing this makes them usable again, but when attempting to close, click and drag, or manage tabs on the window, all tabs on the window freeze, as well as the desktop and taskbar once again. This can be resolved with the Windows key just as before, but it is disruptive to general computer workflow. What's more, certain other application windows open on the screen, including the file explorer, will close between refreshes, making work with multiple windows more difficult.

I am running Firefox 128.0.3 (64 bit) on a Windows 11 computer. This issue began yesterday (August 2, 2024), but it supposedly fixed itself that afternoon and came back this morning. I run Firefox with automatic updates, so I am unsure if this correlates with a software update. Removing the add-ons I used did not resolve the issue, and I use three extensions that were downloaded months ago with zero detrimental effects. I have data for bookmarks and favorites transferred from my Google Chrome browser, which I've dropped in favor of Firefox roughly 6 months ago with no issues.

I have already tried Mozilla's recommended troubleshooting methods in order to resolve this issue permanently. I have restarted my computer multiple times. I cleared my browser history, cookies, and data, uninstalled and re-installed Firefox, and refreshed Firefox from the troubleshooting information page. All to no effect.

Pšašany wót wužywarja Riley Dennis pśed 2 dnjoma