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Hello!

I have been using this userChrome.css code to hide the tab bar if there is only one tab (on Windows):

tab:only-of-type, tab:only-of-type + #tabs-newtab-button {

   display: none !important;

}

#tabbrowser-tabs, #tabbrowser-arrowscrollbox, #tabbrowser-tabs > .tabbrowser-arrowscrollbox {
   min-height: 0 !important;

}

Since one of the recent Firefox updates, this code does no longer work. Maybe because there is a new element in the tab bar: A drop-down list at the right.

Any idea how to make the above code work again?

Peter

Hi,

When using the right click menu on a PDF item in the Download Library (Ctrl+J) option Open In XYZ PDF viewer opens the pdf in chrome!!! option [selecting] Always Open In XYZ PDF viewer opens the file in chrome!!! option [deselecting] Always Open In XYZ PDF viewer opens the file in FF!!!

Double clicking on a PDF item in the Download Library (Ctrl+J) also opens the file in chrome!!!

This is totally wrong, please fix it asap. Thx

The option "always open similar files" is not shown in the downloaded file context menu. This occurs on 2 machines running Windows 7 64 bit. A third machine also running Windows 7 64 bit shows it correctly. All three machines have Firefox 98.0.1 installed.

Please advise how to resolve this.

I cannot turn on the audio input and the audio output in Discord web application when running Firefox for desktop PC. The advice from Mozilla Support knowledge base regarding how to enable microphone did not help, since there is always no access request from discord.com detected in "Preferences" -> "Privacy & Security" -> "Permissions".

I am using the latest version of Firefox (94.0.1) on Windows 7 SP 1 and Windows 10 20H2. In Discord Support knowledge base the app is claimed to support Firefox version 80+.

Hi, I am using the dark mode in firefox which is god sent boon to persons having glaucoma, with dark mode in firefox and dark reader add on. This was going well and after a recent update, I could not find it working. The dark mode is enabled and dark reader was there, but the browsing pages only shows in white. Has firefox changed anything recently to have this issue? If I miss something would the experts say, how to get back my dark browsing experience in all sites. If I find anything not visible in some sites, I used to go the windows properties and change the contrast theme to windows basic blue theme and then switched back to dark theme. this was helping the glaucoma persons very much. please, say how to solve this problem

After the most recent update, currently on 92.0, the Minimize, Maximize, and Close buttons are invisible. They are still there and I can get the tool-tip if I hover over them with the mouse, but visually they are completely gone.

Any ideas how to fix this?

Thanks in advance!

So I've got Proton UI forced on me today in 92.0 update and accordingly had to spend my entire evening trying to repair all of the damage. So far I've managed to fix menu spacing and the way tabs look all while not breaking previous walls of text in userChrome.css meant to fix even older UI problems. Still one thing I failed to find any solutions to is the bookmark drop-down menus color issue. Those menus used to be gray, but now they are all bright white, which to me is super annoying. Any tips on how to fully recolor those?

Hello, I would like to know how to remove 'other bookmarks' folder from the right side of bookmark toolbar that showed up suddenly on my browser, it's right after the arrows to show more bookmarks. I can't seem to find a way to delete this.

I am not a geek and I follow all the details of 'how to etc etc' but nothing works and the phone goes into random loops and keeps telling my I cannot sync (I KNOW that). Firefox has no phone number or email system for technical support (or any type of support) just this hit and miss system of 'forums' (or is that fora). I tried to send a bug report but I am NOT signing up for another (geek speak) account just to send you the problem. Please fix this issue - it never used to happen on older versions - how can I roll back my firefox to something that works properly?? Here is the error report, enjoy, to me it is written in ancient g(r)eek!

1659608046381 Sync.SyncScheduler DEBUG Next sync in 600000 ms. (why=schedule) 1659608314611 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1659608314611 FirefoxAccounts DEBUG getOAuthToken enter 1659608314612 FirefoxAccounts TRACE getCachedToken returning cached token 1659608314612 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1659608314613 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1659608315651 Services.Common.RESTRequest DEBUG GET https://profile.accounts.firefox.com/v1/profile 304 1659608317134 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:fxa_status 1659608317134 FirefoxAccounts DEBUG fxa_status received 1659608317134 FirefoxAccounts DEBUG service: sync 1659608317134 FirefoxAccounts DEBUG is private browsing: true 1659608317329 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:loaded 1659608317329 FirefoxAccounts WARN Unrecognized FxAccountsWebChannel command: fxaccounts:loaded 1659608320303 FirefoxAccounts DEBUG FxAccountsWebChannel message received: fxaccounts:pair_preferences 1659608320908 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608320908 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608320908 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608320909 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608321321 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608321322 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608321367 FirefoxAccounts TRACE not checking freshness of profile as it remains recent 1659608434712 FirefoxAccounts DEBUG FxAccountsPush loading service 1659608434712 FirefoxAccounts DEBUG FxAccountsPush initialized 1659608434747 FirefoxAccounts TRACE observed topic=push-message, data=chrome://fxa-device-update, subject=[xpconnect wrapped nsISupports] 1659608434747 FirefoxAccounts TRACE FxAccountsPushService _onPushMessage 1659608434753 FirefoxAccounts DEBUG push command: fxaccounts:device_disconnected 1659608434754 FirefoxAccounts DEBUG Notifying observers of fxaccounts:device_disconnected 1659608434754 FirefoxAccounts INFO fetching updated device list 1659608434754 Sync.Engine.Clients DEBUG Updating the known stale clients 1659608434754 Sync.Engine.Clients DEBUG Refreshing the known stale clients list 1659608434757 Services.Common.RESTRequest DEBUG GET request to https://api.accounts.firefox.com/v1/account/devices 1659608435790 Services.Common.RESTRequest DEBUG GET https://api.accounts.firefox.com/v1/account/devices 200 1659608435791 Hawk DEBUG (Response) /account/devices: code: 200 - Status text: OK 1659608435791 Hawk DEBUG Clock offset vs https://api.accounts.firefox.com/v1: -2791 1659608435792 FirefoxAccounts INFO Got new device list: 3bab5932266da6469edabb3b022d462f, 622e1483fa5b0564fc504f75d009b422, 6bf539feb208fd2a1eaf7bf820de34f0, 73ad7ca5e184fd5a50f2f48dd70866d1, 7c41118e2a1f1174997c0cce0f12284c, 7e2285d6c17f0fb8bf12ddb7d479892f, c66b82cce8ac7a7972116bff3d23ce2e, e48e0ecaf75ca3b8b9c64b315ed4be22 1659608435793 FirefoxAccounts INFO updating the cache 1659608623665 FirefoxAccounts ERROR Pairing channel error: Error: WebSocket unexpectedly closed(resource://gre/modules/FxAccountsPairingChannel.js:3601:20) JS Stack trace: FxAccountsPairingChannel</_setupListeners/<@FxAccountsPairingChannel.js:3601:20 1659608646390 Sync.Service DEBUG User-Agent: Firefox/103.0.1 (Windows NT 6.1; Win64; x64) FxSync/1.105.0.20220729222726.desktop 1659608646391 Sync.Service INFO Starting sync at 2022-08-04 12:24:06 in browser session kSKF98oczh8c 1659608646392 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1659608646402 Sync.Status INFO Resetting Status. 1659608646402 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1659608646405 FirefoxAccounts DEBUG FxAccountsProfileClient: Requested profile 1659608646405 FirefoxAccounts DEBUG getOAuthToken enter 1659608646408 FirefoxAccounts TRACE getCachedToken returning cached token 1659608646408 FirefoxAccounts DEBUG getOAuthToken returning a cached token 1659608646410 Services.Common.RESTRequest DEBUG GET request to https://profile.accounts.firefox.com/v1/profile 1659608646715 Sync.Resource DEBUG GET success 200 https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/info/collections 1659608646717 Sync.Service DEBUG Fetching server configuration: https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/info/configuration 1659608646909 Sync.Resource DEBUG GET success 200 https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/info/configuration 1659608646911 Sync.Service DEBUG Fetching global metadata record 1659608646911 Sync.Service DEBUG Weave Version: 1.105.0 Local Storage: 5 Remote Storage: 5 1659608646911 Sync.Service DEBUG Fetching and verifying -- or generating -- symmetric keys. 1659608646912 Sync.Service INFO Testing info/collections: {"bookmarks":1659608043.52,"extension-storage":1605357784.56,"clients":1659606031.62,"meta":1596625959.52,"forms":1659075090.37,"crypto":1578385419.9,"history":1659111154.3,"passwords":1656864350.76,"addons":1654102992.88} 1659608646912 Sync.CollectionKeyManager INFO Testing for updateNeeded. Last modified: 1578385419.9 1659608646912 Sync.Synchronizer DEBUG Refreshing client list. 1659608646913 Sync.Engine.Clients DEBUG Resetting clients last sync time 1659608647128 Sync.Collection DEBUG GET success 200 https://sync-1-us-west1-g.sync.services.mozilla.com/1.5/148151151/storage/clients?full=1&limit=1000 1659608647138 Sync.Engine.Clients INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 2 reconciled. 1659608647139 Sync.Engine.Clients DEBUG Refreshing the known stale clients list 1659608647152 Sync.Engine.Clients INFO Uploading 0 outgoing records 1659608647155 Sync.Synchronizer INFO Updating enabled engines: 2 clients. 1659608647157 Sync.Synchronizer INFO Syncing all enabled engines. 1659608647162 Sync.Engine.Passwords INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647162 Sync.Engine.Passwords INFO Uploading 0 outgoing records 1659608647163 Sync.Engine.Bookmarks DEBUG Checking if server sync ID EcjFZAdZwynf matches existing 1659608647169 Sync.Engine.Bookmarks INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647169 Sync.Engine.Bookmarks.Mirror DEBUG Merging bookmarks in Rust 1659608647173 Sync.Engine.Bookmarks.Mirror DEBUG Building local tree 1659608647179 Sync.Engine.Bookmarks.Mirror DEBUG Building remote tree 1659608647190 Sync.Engine.Bookmarks.Mirror DEBUG Building merged tree 1659608647190 Sync.Engine.Bookmarks.Mirror DEBUG Applying merged tree 1659608647191 Sync.Engine.Bookmarks.Mirror DEBUG Merging bookmarks in Rust took 21.432ms 1659608647191 Sync.Engine.Bookmarks.Mirror DEBUG No changes detected in both mirror and Places 1659608647192 Sync.Engine.Bookmarks INFO Uploading 0 outgoing records 1659608647208 Sync.Engine.Bookmarks.BookmarkSyncUtils DEBUG pushChanges: Processed change records: {"weak":0,"skipped":0,"updated":0} 1659608647209 Sync.Engine.Addons DEBUG Refreshing reconciler state 1659608647209 Sync.AddonsReconciler INFO Refreshing global state from AddonManager. 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Mount Rainier Sunset by M♥Donna (version=6.0, id={c55346b8-b052-4db2-9267-61b7df3f29ef}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Mountain Theme (version=2.0, id={0f13a6cc-fbbb-41a6-b42e-314514cce874}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Facebook Container (version=2.1.1, id=@contain-facebook) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Dictionnaire français (version=7.0b, id=fr-dicollecte@dictionaries.addons.mozilla.org) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon DuckDuckGo Privacy Essentials (version=2020.8.18, id=jid1-ZAdIEUB7XOzOJw@jetpack) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon The Diving Collie (version=2.0, id={c20ca56b-78c1-4d5a-bbe3-b978c435be69}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Ducati Bike Theme (version=2.0, id={f8818a98-92c6-4355-98e9-8a2f86abb14e}) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon AdBlock — best ad blocker (version=4.43.0, id=jid1-NIfFY2CA8fy1tg@jetpack) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon British English Dictionary (Marco Pinto) (version=3.0.7, id=marcoagpinto@mail.telepac.pt) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Français Language Pack (version=103.0.1buildid20220729.222726, id=langpack-fr@firefox.mozilla.org) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon English (GB) Language Pack (version=103.0.1buildid20220729.222726, id=langpack-en-GB@firefox.mozilla.org) 1659608647211 Sync.AddonsReconciler DEBUG Rectifying state for addon Form Autofill (version=1.0.1, id=formautofill@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Firefox Screenshots (version=39.0.1, id=screenshots@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon WebCompat Reporter (version=1.5.0, id=webcompat-reporter@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Web Compatibility Interventions (version=103.0.0, id=webcompat@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon DoH Roll-Out (version=2.0.0, id=doh-rollout@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Picture-In-Picture (version=1.0.0, id=pictureinpicture@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Google (version=1.2, id=google@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Amazon.com (version=1.3, id=amazondotcom@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Bing (version=1.3, id=bing@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon DuckDuckGo (version=1.1, id=ddg@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon eBay (version=1.3, id=ebay@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Wikipedia (en) (version=1.1, id=wikipedia@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Amazon.co.uk (version=1.9, id=amazon@search.mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon System theme — auto (version=1.3, id=default-theme@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Light (version=1.2, id=firefox-compact-light@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Dark (version=1.2, id=firefox-compact-dark@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Firefox Alpenglow (version=1.4, id=firefox-alpenglow@mozilla.org) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon Add-ons Search Detection (version=2.0.0, id=addons-search-detection@mozilla.com) 1659608647212 Sync.AddonsReconciler DEBUG Rectifying state for addon OpenH264 Video Codec provided by Cisco Systems, Inc. (version=1.8.1.2, id=gmp-gmpopenh264) 1659608647213 Sync.AddonsReconciler DEBUG Rectifying state for addon Widevine Content Decryption Module provided by Google Inc. (version=null, id=gmp-widevinecdm) 1659608647215 Sync.AddonsReconciler INFO Saving reconciler state to file: addonsreconciler 1659608647222 Sync.Engine.Addons.Store DEBUG gmp-gmpopenh264 not syncable: type not in allowed list: plugin 1659608647223 Sync.Engine.Addons INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647224 Sync.Engine.Addons INFO Uploading 0 outgoing records 1659608647225 Sync.Engine.Forms INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647226 Sync.Engine.Forms INFO Uploading 0 outgoing records 1659608647226 Sync.Engine.History DEBUG Checking if server sync ID x56-DiRAUha6 matches existing 1659608647228 Sync.Engine.History INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647228 Sync.Engine.History INFO Uploading 0 outgoing records 1659608647232 Sync.Engine.Extension-Storage INFO Records: 0 applied, 0 successfully, 0 failed to apply, 0 newly failed to apply, 0 reconciled. 1659608647233 Sync.Engine.Extension-Storage INFO Uploading 0 outgoing records 1659608647234 Sync.Doctor INFO Skipping check of passwords - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of bookmarks - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of addons - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of forms - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of history - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping check of extension-storage - disabled via preferences 1659608647234 Sync.Doctor INFO Skipping validation: no engines qualify 1659608647234 Sync.Status DEBUG Status.sync: success.sync => success.sync 1659608647234 Sync.Status DEBUG Status.service: success.status_ok => success.status_ok 1659608647234 Sync.Synchronizer INFO Sync completed at 2022-08-04 12:24:07 after 0.83 secs. 1659608647235 Sync.Declined DEBUG Handling remote declined: ["prefs","tabs"] 1659608647235 Sync.Declined DEBUG Handling local declined: ["prefs","tabs"] 1659608647235 Sync.Declined DEBUG Declined changed? false 1659608647235 Sync.Service INFO No change to declined engines. Not reuploading meta/global. 1659608647236 Sync.SyncScheduler DEBUG Next sync in 600000 ms. (why=schedule)

It appears web sites can track my activity on their site. How do I make it so a given web site can't track me? Does Firefox have a setting that makes it more difficult to track me on a given web site? I've seen where a VPN, not sure what that is, can be of big help. How do I initiate a VPN and are there free VPN's? When I visit this particular site it states, "from your site login activity" and goes on from there what they want to do. How do I make it more difficult for a web site to be able to track my log in activity? Will a VPN solve this problem? Or, does Firefox have various accessories that can do the same thing? I know deleting cookies with this particular site does not solve the issue for me. Can someone help? Thank you.

After firefox update to 100.0 - i can't use any of my addons, and cant install new one. All my current updates appears in "disabled" status, and there's no "enable" button. I have many addons, so it's the global problem.

Also, i can't install any of updates from addons.mozilla.org, i get message "Installation aborted because the add-on appears to be corrupt". All addon xpi files are downloaded without problem using "save as", also, after clicking "install" on addons website i see download progress.

Please help to resolve this issue!

Just recently, past few days, my Firefox desktop browser will not display real time quotes & trades for Binance.US. Microsoft Edge does display correctly. I then went to wife's computer and it has the same Firefox problem and the same correct display with Edge. I have deleted cookies, cache, & history to no correction. I opened Firefox in safe troubleshooting mode and the problem persists. Yahoo, Coindesk, & other sites quotes do display in real time; however, Binance.us will not in Firefox version 94.0.1.

Remember when FF had over 25% market share? And now you're at less than 3.5%. That's because you keep messing with the FF interface. Take for example you're unwanted chunky new double spaced menus and bookmarks. Everybody hates them. You know that. Why not listen to the last of the FF users?

Why not give use end-users a voice in how Firefox looks? Let us OPT OUT of cosmetic design changes. I've never been asked my opinion in a survey and you killed-off the FF feed back feature. Why? Because too many people don't like what your doing? Since Google essentially owns you now, are trying to kill off FF for them? Because you're doing a great job of it!

Hello,

I have a PC with Windows Seven, and a local network 1Gb/s (wired, no Wifi) with a NAS. When Firefox is open, the speed of my local network slow down. It takes about 30 seconds to open a big picture on the NAS when Firefox is open, and 0.5 s when Firefox is closed. Same thing for video. I can't read a video when Firefox is open. With Chrome or other browser all is ok... Firefox version is 91.0.2 64 bits, but same issue with previous version.

I have made a new profile, a new install of Firefox, shut down my firewall and Antivirus, Opening Firefox in safe mode, repair Firefox, but no effect...

Any help will be extremely appreciated!

Thanks!

A very brief blank window appears before the Firefox home screen finally comes up. Home screen is yahoo.com. This has started recently.

This: https://blog.mozilla.org/addons/2021/04/19/changes-to-themeable-areas-of-firefox-in-version-89/

Says that I can’t have lines separating my unused tabs anymore. This is SO annoying. Can anyone help me get borders between my unused tabs?

Also, WHY ARE YOU DOING THIS Mozilla? Now I have to stop EVERYTHING that I am doing and research how I can make your browser work the way I want it to. Why do you always assume that you know what is best for me?

I tried the "Stylish" add-in but when I try to install a specific style from their site - nothing happens.

The Firefox Universe is extremely vast, and trying to Google “lines between my unused tabs” is getting me nowhere. I don’t know how to develop themes. I don’t code. I just want the browser to look like it did last week. Is it really so much to ask?

Every. Single. Time. I update Firefox - I regret it!!!

I had two Firefox windows open. One had 100+ tabs open, the other had around 5 open. Like a klutz I accidentally closed the window with the 100+ tabs open instead of the other window. Now when Firefox restarts it opens the version with the 5 tabs.  :-( I read about lost tabs in Firefox. I have found a file with the 100+ tabs in it. It is called: upgrade.jsonlz4-20221007134813. But what do I do next to restore Firefox to restart with the 100+ tabs version? Thanks.

I've tried every suggestion of removing "Other Bookmarks" and all failed miserably with this new Firefox, it is ticking me off, why Firefox creates these irritations for its members is beyond me, no wonder its popularity is shrinking. I need a new solution that works for mercy sake, I am at the end of my rope with this issue.