Firefox Support Forum

I recently updated to 125.0.1 and now get 'failed to check for updates': - when I manually check (help > about Firefox) (see image) - in 'settings' it also shows 'failed to check for updates' (see image) I never had such a problem with previous versions; any suggestions?

For the past week, my browser does not auto-update. I have to download the update and re-download the browser.

I went into the settings and found the update section and when I clicked "Check for Updates", it kept saying "failed to check for updates". I tried with my proxy-settings on with VPN on, proxy-settings on with VPN off, proxy-settings off with VPN on, proxy-settings on, with VPN off.

This is in my personal laptop, where I am the only and admin profile.

My Firefox used to to auto-update but now it keeps saying I need to download the update, but my browser can't even tell if I have the most current version or not.

Help -> About "Failed to check for updates."

This has been going on for over a week. I have downloaded and applied the installation program multiple times (>3). The problem persists. What is going on, and how do I fix it? Thanks

I have been getting the "new version available, download now nag for over 2 weeks, and I have the latest version. Still get this issue repeatedly every day. Starting to become an every hour nag to update and install latest version of Firefox. Refuse to use Microsoft Edge or Chrome, and will switch off Firefox too if not rectified.

I keep getting this message that pops up in a private window to restart to keep using firefox. Everytime I click restart Firefox, it closes my tabs and opens them again. However, 5 minutes later the window pops up again. Even after repeated attempts of updating, even doing a full restart on the computer, Firefox continues to send this window to me. The private window in the bar says about:restartrequired.

I've tried uninstalling Firefox with a fresh install as well as doing a Refresh of Firefox. Neither seem to solve this problem.

My Browser keeps on telling me there is an update... I've updated, reinstalled the latest version and it still keeps giving a pop-up saying there is an update...

How do I get rid of these pop-ups???

Firefox keeps reminding me that updates are available. I download and it says its installing but it doesn't seem to update. I have tried closing Firefox before running the installation but it makes no difference. I am on 125.02 at the moment.

After installing Thunderbird i had first download problems for new Firefox Versions. I tested around, installed everything new and found the solution. Somehow the Maintenance Service didn`t work properly on my machine and after deinstalling and restarting i can update firefox again. Problem remains: When trying to install Offline Languages , see picture, i get the message that it does not work. I tried everything possible, including reinstalling and deleting all old profiles (was a lot of work). Any ideas?

I want to keep browser open after closing last tab. I changed the boolean parameter "browser. tabs. closeWindowWithLastTab" to "false" but the browser still closes with closing of last tab.

What else is required ?

Do Firefox menus appear differently in Windows 10 than they do in Windows 7?

In Windows 7, I see the normal system menus - square corners, light blue menu item highlights, 3D column line on the left, dark drop shadow below and to the right of the menu.

In Windows 10 I notice differences - gray-highlighted menu items, rounded corners, no drop shadow, etc.

I'm not using any code to style the menus.

Please see attached images.

Thanks to all who respond.

Sync just does NOT work. I installed FF on my Mac brand new and fresh... brand new machine. Signed into Sync. NOTHING. After 6-7 HOURS... nothing. It just gets NOTHING AT ALL from my Windows Desktop.

I've signed out of ALL Firefox/Mozilla sync sessions... signed in clean- all browsers are up to date. And the about:sync-log page shows a LONG streak of errors... NON STOP ERRORS.

Why?! Why can't we just sync extensions to install and bookmarks across machines? How is this that hard for Mozilla?!

The sync-log page list: File:error-sync-1714085057059.txt 6 KB 4/25/2024 17:44:17 File:error-sync-1714088658041.txt 18 KB 4/25/2024 18:44:18 File:error-sync-1714189161327.txt 6 KB 4/26/2024 22:39:21 File:error-sync-1714498425099.txt 13 KB 4/30/2024 12:33:45 File:error-sync-1714588968223.txt 10 KB 5/1/2024 13:42:48 File:error-sync-1714589121080.txt 9 KB 5/1/2024 13:45:21 File:error-sync-1714600674960.txt 7 KB 5/1/2024 16:57:55 File:error-sync-1714604277834.txt 24 KB 5/1/2024 17:57:57 File:error-sync-1714838021899.txt 24 KB 5/4/2024 10:53:41 File:error-sync-1714839602488.txt 11 KB 5/4/2024 11:20:02 File:error-sync-1714839613709.txt 10 KB 5/4/2024 11:20:13 File:error-sync-1714844303035.txt 16 KB 5/4/2024 12:38:23 File:error-sync-1714844919123.txt 15 KB 5/4/2024 12:48:39 File:error-sync-1714846872373.txt 17 KB 5/4/2024 13:21:12 File:error-sync-1714846956569.txt 12 KB 5/4/2024 13:22:36 File:error-sync-1714941772713.txt 15 KB 5/5/2024 15:42:52 File:error-sync-1714941774043.txt 14 KB 5/5/2024 15:42:54 File:error-sync-1714941849730.txt 14 KB 5/5/2024 15:44:09 File:error-sync-1714942633097.txt 14 KB 5/5/2024 15:57:13 File:error-sync-1714942674714.txt 48 KB 5/5/2024 15:57:54

Day after day and attempt after attempt of failures for a basic function of the browser.

Here is the text of the latest log and showing constant connection errors- mind you NOTHING is breaking on my internet as I'm often streaming things and watching stuff while surfing, or others in the house are. Our connection, and Firefox getting online, are all working fine. I am at a loss. I don't understand how this is so terribly broken out of the box that you can't just sign in and let it talk to their servers. I know Google has billions behind Chrome, but this shouldn't be so 1990's bad by comparison to Chrome sync.

1714081299909 Sync.SyncScheduler DEBUG Next sync in 3600000 ms. (why=schedule) 1714081300746 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1714082945349 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1714082945373 Sync.SyncScheduler DEBUG Network link status changed to "down". Offline?: false 1714082945373 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1714082945374 Sync.SyncScheduler DEBUG Next sync in 3600000 ms. (why=schedule) 1714085055761 Sync.SyncScheduler DEBUG Woke from sleep. 1714085056643 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1714085056786 Sync.SyncScheduler DEBUG Network link status changed to "up". Offline?: false 1714085056786 Sync.SyncScheduler DEBUG Network link looks up. Syncing. 1714085056899 Sync.SyncScheduler DEBUG Network link status changed to "changed". Offline?: false 1714085056902 Sync.Service DEBUG User-Agent: Firefox/125.0.2 (Windows NT 10.0; Win64; x64) FxSync/1.127.0.20240419144423.desktop 1714085056902 Sync.Service INFO Starting sync at 2024-04-25 17:44:16 in browser session V0xN5aUmAS9A 1714085056902 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1714085056904 Sync.Status INFO Resetting Status. 1714085056904 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1714085056904 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1714085056904 FirefoxAccounts DEBUG getOAuthToken enter 1714085056905 FirefoxAccounts TRACE getCachedToken returning cached token 1714085056905 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1714085056905 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1714085056905 Sync.SyncAuthManager INFO Getting sync key 1714085056905 FirefoxAccounts DEBUG getOAuthToken enter 1714085056905 FirefoxAccounts TRACE getCachedToken returning cached token 1714085056905 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1714085056905 Sync.SyncAuthManager INFO Getting a sync token from: https://token.services.mozilla.com/1.0/sync/1.5 1714085056905 Sync.SyncAuthManager DEBUG Getting a token using OAuth 1714085056905 Services.Common.TokenServerClient DEBUG Beginning OAuth token exchange: https://token.services.mozilla.com/1.0/sync/1.5 1714085056906 Services.Common.RESTRequest DEBUG GET request to https://token.services.mozilla.com/1.0/sync/1.5 1714085057025 Services.Common.RESTRequest DEBUG GET https://profile.accounts.firefox.com/v1/profile failed: 2152398878 - NS_ERROR_UNKNOWN_HOST 1714085057025 FirefoxAccounts ERROR Background refresh of profile failed: {"name":"FxAccountsProfileClientError","code":null,"errno":998,"error":"NETWORK_ERROR","message":"[Exception... \"NS_ERROR_UNKNOWN_HOST\" nsresult: \"0x804b001e (NS_ERROR_UNKNOWN_HOST)\" location: \"JS frame :: resource://services-common/rest.sys.mjs :: onStopRequest :: line 478\" data: no]"} 1714085057031 Services.Common.RESTRequest DEBUG GET https://token.services.mozilla.com/1.0/sync/1.5 failed: 2152398878 - NS_ERROR_UNKNOWN_HOST 1714085057031 Sync.SyncAuthManager ERROR Non-authentication error in _fetchTokenForUser: TokenServerClientNetworkError({"error":{}})(resource://services-common/tokenserverclient.sys.mjs:28:36) JS Stack trace: TokenServerClientNetworkError@tokenserverclient.sys.mjs:51:16 _tokenServerExchangeRequest@tokenserverclient.sys.mjs:235:13 1714085057031 Sync.Status DEBUG Status.login: success.login => error.login.reason.network 1714085057031 Sync.Status DEBUG Status.service: success.status_ok => error.login.failed 1714085057031 Sync.SyncAuthManager ERROR Failed to fetch a token for authentication: TokenServerClientNetworkError({"error":{}})(resource://services-common/tokenserverclient.sys.mjs:28:36) JS Stack trace: TokenServerClientNetworkError@tokenserverclient.sys.mjs:51:16 _tokenServerExchangeRequest@tokenserverclient.sys.mjs:235:13 1714085057032 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1714085057055 Sync.Resource WARN GET request to https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/209631697/info/collections failed: [Exception... "The lookup of the hostname failed" nsresult: "0x804b001e (NS_ERROR_UNKNOWN_HOST)" location: "<unknown>" data: no] No traceback available 1714085057056 Sync.Status DEBUG Status.sync: success.sync => error.login.reason.network 1714085057056 Sync.Status DEBUG Status.service: error.login.failed => error.sync.failed 1714085057056 Sync.ErrorHandler ERROR Sync encountered an error: [Exception... "The lookup of the hostname failed" nsresult: "0x804b001e (NS_ERROR_UNKNOWN_HOST)" location: "<unknown>" data: no] No traceback available 1714085057056 Sync.SyncScheduler DEBUG Next sync in 3600000 ms. (why=reschedule) 1714085057057 Sync.Telemetry INFO Early submission of sync telemetry due to changed IDs/NodeType 1714085057059 Sync.Service DEBUG Exception calling anonymous function: [Exception... "The lookup of the hostname failed" nsresult: "0x804b001e (NS_ERROR_UNKNOWN_HOST)" location: "<unknown>" data: no] No traceback available

On my iMac 2017, up-to-date OS, Firefox won't load YouTube. It only shows the spaces for videos. Attached is a screen shot with the console info, but I don't know what it's telling me. However, on my MacBook YouTube works fine, so maybe I have a setting wrong on the iMac? Meanwhile, I just switch to Safari. Thanks for any help

Hi....

I've been using the same firefox (installed every update) for over 10 years now and a lot of bookmarks have been accumulated. They are from different sources for different reasons/subjects/interests etc... I think when I reached ~430.000 or something like that it really slowed firefox down in a way that even clicking on a folder in the "bookmark symbol bar" (the one underneath the URL address fiel) takes 2-3 sec to open up and show the containing bookmarks. In the bm-manager going from one folder to another also takes a few seconds. I've now deleted about 40.000 but no change it's still lagging. and deleting 1000 takes about 1h.

I've looked but so far I couldn't find another tool or a better way to manage all these URLs WITH their title.

I still want to keep them, but managing them has become so slow and tedious. So if you have any suggestions especially for other tools to manage them....

I also think the possibility to export only a part of them (selected ones, or specific folders) would be helpful; maybe also a tool to clean up the database? (like defrag did for harddrives?). or split it to differnt files? I don't know.

I know 400.000 bookmarks are extreme... but well....

Needed to look through my April history (pages looked at) in the Library. I had APRIL history up, ready to look through it. I tried to delete one page and it DELETED the whole MONTH. How do i get the APRIL history back? APRIL is gone from the list. jumps to March after the last 7 days

I went to RESTORE but this talks about BOOKMARKS It shows for today may 7, 149 items for example then it shows April 29, april 9, april 4 april 1, each with about 150 items but if I were to click on these it says will replace all BOOKMARKS,

thank you

When I would mouse-over a thumbnail on the Youtube home page I use to get a video preview with sound and text controls displayed. Video preview and controls are now missing on homepage thumbnails. Is there a way to get preview and controls back ?

I cleared the cache and cookies...no effect. Problem does not exist with Edge browser.

Using Windows 10 / Firefox browser 125.0.3 (64-bit)

I am using theme called WhiteSur to imitate Safari, as that is the browser layout I prefer. However, this doesn't change the position of the close tab button and leaves it on the right hand side. I found a way to change it, using the code .tabbrowser-tab .tab-close-button {

 margin-left: -5px !important;
 margin-right: 2.5px !important;

} Unfortunately, this doesn't change based on the size of the tab, so if I set it to a size that is good for only having 1 tab, it will look bad or be off the screen for the other amounts of tabs. Is there a way to detect the width of the tab or the amount of tabs open and dynamically set the margins based off of this? So I could set it as (width-of-tab)-x and that would always keep the close tab button in the same spot, regardless of tab size. Thanks!

Hi All,

Any idea why the menu code I'm using below to reduce padding in menu items is only affecting Firefox in Windows 10, but not in Windows 7?

Please see attached images.

It's a very strange anomaly. This is true for both FF 125 and FF 115 ESR.

Thanks to all who respond.

/*** Tighten up drop-down/context/popup menu spacing (8 Sep 2021) ***/ /*

*
* why doesn't this affect the Firefox menu bar in Windows 7?  only in windows 10?
*
*/

menupopup:not(.in-menulist) > menuitem, menupopup:not(.in-menulist) > menu {

 padding-block: 0px !important; /* reduce to 3px, 2px, 1px or 0px as needed */ 
 min-height: unset !important; /* v92.0 - for padding below 4px */

}

root {

 --arrowpanel-menuitem-padding: 4px 8px !important;

}