Firefox Community Forum

I have the strangest problem. If Firefox is closed and I do a speedtest in another browser, download a file, or do other internet activity I'm getting about 200-250Mbps d/l and 100Mbps upload. As soon as I open Firefox, whether I load a page or not, the upload speed stays the same, however the download speed drops to about 25-50 Mbps. This only happens on one PC, the upload isn't affected, and resolves itself as soon as Firefox is closed. Here's what I have done without any change in this behaviour;

• Rebooted
• ipconfig /release /renew /flushdns
• Removed and reinstalled the network adapter
• Enabled, disabled windows auto tuning and tested (slower disabled)
• Updated Windows
• Refreshed Firefox
• Uninstalled Firefox, deleted remaining folders from Appdata (Local, Low, Roaming) as well as the program file directories and "Mozilla" registry entries. Restarted and reinstalled. Issue immediately resumed when Firefox was open.

Also when connected to a VPN Firefox download speed increases to about 60Mbps and is consistent across other software. If I split tunnel another browser outside the VPN, it is still stuck at 60Mbps. If I close Firefox the speed increases.

This makes absolutely no sense to me, so I'm hoping someone can shed some light on this - but it does seem to be something Firefox is doing.

Thanks for any help anyone can provide.

Since the penultimate and now the last current update to version 127.0.2 (64Bit), the button (tile with the + sign) to add new shortcuts is no longer available. How can new shortcuts be added now?

Hello, when in the library, pressing F6 is meant to "Focus Search Field". This is documented at https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly

However, since a recent update this no longer works. Instead, pressing F6 now switches the keyboard focus to the lefthand tree pane. A further press of shift+tab is needed to move to the search box.

My questions are: Has F6 stopped jumping to the library search box for anyone else? If so, was this a deliberate design choice? Does anyone know of an alternate keyboard shortcut to jump to the searchbox? Finally, is there anyway to revert to the old F6 behaviour?

Even if you can only answer the first question that would help, so I can determine whether or not it is just my Firefox. Although I have already tested in a brand new profile with the same results.

Thanks.

Hi Guys,

This is a recent hiccup and only seems to affect Firefox 126.0.1 & 127.0 (I'm running Win64 EME-free):

I have a HTML file which displays images from various weather-cam websites, using the HTML "img src=" tag.

On previous versions of Firefox all was fine, however since 126.0.1 one image in particular will not display - it simply shows a broken image place-holder. Using MS Edge and Chrome, it displays correctly.

This is the image in question:

http://119.17.143.158:8777/Streaming/channels/102/picture/?auth=U1BDRzo1NG5keXAwMW50IQ==

I suspect it's something to do with the "auth=" 'key'?

Thanks in advance for any suggestions/assistance.

Mike.

I am using Windows 11 and FF 127.02. I have read the lag issue with Youtube was suppose to be corrected with FF 127.02 but it is not. I have been using FF for many years now an love it. It is my understanding that it is the ad blockers causing the slow down. Do you have an estimated date when this will be resolved. I have tried every trick included running it in diagnostic mode or trouble shooting mode. Nothing seems to work. Not even a refresh.

Thanks

I just noticed that I can no longer re-arrange tabs by using drag-n-drop or create bookmarks in my bookmarks bar using drag-n-drop. Is this a new "feature" in 127.0?

Hi,

I can't watch live stream on youtube. I see only black screen on loading circkle. Ads working fine but after them i see what i said before. When live is over then i can normally watch it. I can watch twitch normally. There is problem olny on yt. best chris

Prior to ~1 week ago, my process of using Firefox was as follows:

• Open a new tab, search for something, click through a few links

If I couldn't find anything relevant in the first page of results, I'd navigate back to the Firefox Home Page and try another search. I hate going past the first page of results!

However, as of ~1 week ago, I can no longer navigate to the Firefox Home Page - why is this?

Over the past week or so, Youtube videos take a while to start, and will at times just stop and buffer. I turned off uBlock Origin for Youtube, and I have Youtube Premium, but this issue is still happening. Ookla speed test is 569.32 Mbps download, and 23.50 Mbps upload. My Firefox is set to automatically update. Current version is 127.0.1

Today I started getting repeated notifications, every 5 to 10 min or so, that my McAfee subscription has expired, my credit card has been rejected, and that my computer is infected. I do not use McAfee, either in Firefox or on my computer. I use the security suite that comes with Windows. I cannot stop these messages from appearing, and disabling notifications from McAfee in the messages does no good, the notifications just keep coming. HOW DO I MAKE THEM GO AWAY? They must be SPAM because I've never had a McAfee product on this machine, EVER. Thank you so much for the help, Dave Templeton

Hello!

I am a heavy user of Firefox: daily & around 8 hours a day.

I usually use alt+shift+left/right-arrow to select a few words to the right / to the left. With the latest update (mandatory because this is a work-administered) laptop, the new behavior is that tabs are changed.

I want any solution to revert this to standard (past) behavior (preferably not an extension). Looked around in about:config but could not find anything to toggle on/off.

This is highly annoying as I've had this workflow for literally years. Even opening this ticket I encountered the issue more than 3 times as I was phrasing the message and had to delete & rewrite some stuff while also have other tabs open in the same Firefox window.

Would highly appreciate your timely response!

Thanks a lot! -- John

I am using Linux Mint with Firefox 127.0.2 (64-Bit)

In Preferences Applications, setting

 CSV-Dokument      to    open with firefox

opens edless new firefox Tabs - so I had to kill firefox. (setting CSV-Dokument to open with OpenOffice works fine. But this is not what I want.)

In Preferences Applications, I found further CSV types: application/csv-Typ CSV Document (application/text) CSV Document (octet/stream) CSV Document (application/x-download) Which applications should I use for them ?

I found the file "mimeTypes.rdf". However, I am not familiar with the syntax.

In my experience with the TF2 Wiki page, clicking an audio file link would open a new tab where I can play the file. Since I've moved to firefox, I can no longer do this. Instead, the file downloads. Is there a way to change this? I saw in another post that you have to change the flag media.play-stand-alone to true but it was already true.

For many years I have used the ability to set shortcuts to website on the Firefox home tab, using the method given at: https://support.mozilla.org/en-US/kb/customize-items-on-firefox-new-tab-page#w_pin-unpin-or-remove-a-shortcut.

However, today, when I try to edit a shortcut link, I do not get the 3 dots menu by right clicking on a shortcut tile.

Is this a recent change, a bug, an issue with my installation (which has been stable for many years)?

How can I get back the functionality back?

I am using Firefox 127.0 (64 bit) on Windows (Windows 11, all up to date).

I'm trying to get my Firefox installation to permanently disable private browsing mode, however, all information I can find is for the Snap version of Firefox, and not for the Flatpak version. How do I disable private browsing on my installation?

I just started having an issue while watching Live Streams on Youtube with FireFox. I'll load the live stream and it will run for about a minute then it will switch to the streamers previous recorded stream. I opened Youtube on my iPad and on Edge browser and the Live stream keeps playing the live stream but on FireFox it only lets it run for about a minute before flipping the playback to the previous recorded video of that streamer. I tried clearing my cache for Youtube and I have no extensions running. I have Youtube Premium and run no adblockers. I have also tried safe mode but the problem persists.

Any idea what could be happening?

Im currently reading books (pdfs) in firefox and I would like to hide the scroll bar. Im using full screen mode and especially the bar the the bottom is annoying while reading. I've seen a few topics posted about this issue but they are from a few years back and the solution posted doesn't seem to work anymore. (creating profile/chrome/userChrome.css with some code) But maybe the code is just outdated or I did something wrong. Im not too sure.

The best solution to me would be to just hide the bottom scroll bar. I didnt find any option in about:config except for making them (bottom and right) both thinner.

I would greatly appreciate any help.

I had to do a new install of Windows 11 and logged back into Firefox and can't find my old bookmarks. I got to this point and don't know how to retrieve old bookmarks:

C:\Windows.old\Users\meljo\AppData\Roaming\Mozilla\Firefox\Profiles Please help me.

Thanks Mel

I've not been able to download anything on Firefox for about 3-4 weeks now. Every time I try to it immediately fails with no explanation given. The only type of download that works is "Save Image As..." Even trying to download a picture with a download button instead of right clicking nets an immediate fail. I feel like I've done everything to try and troubleshoot it myself, but nothing seems to be working.

I've restarted my computer, ran Firefox in troubleshoot mode, refreshed and reinstalled it, checked for viruses and malware, tried both nightly and ESR versions, tried running them as admin, logged out of my Firefox profile, cleared my cookies and cache, changed and reset the download folder, ran a repair for Visual C++, and reset my windows security settings. I'm honestly surprised nothing has worked.

The only thing that I know I haven't tried yet it refreshing my entire computer, but that's my very far last resort because I'm able to download files just fine on Microsoft Edge. Only the Firefox applications have given me any problems, so if I were to refresh my computer and have the problem still not be solved somehow I'd be deleting everything to get nowhere.

If anyone has any other ideas to try that be very much appreciated.