VERY HIGH CPU USE with pages that never finish loading

Firefox was using GOBS of CPU, so I killed the master process and relaunched, but after launch I couldn't get any pages to finish loading. I then hoped to copy URLs from… (read more)

Firefox was using GOBS of CPU, so I killed the master process and relaunched, but after launch I couldn't get any pages to finish loading. I then hoped to copy URLs from tabs and paste them into Floorp (which is working fine, as is Chrome), but I couldn't even snag the URLs (dominated by YouTube pages). I ran a full-system virus scan, finding nothing. The most recent Windows-11 update on 2026-Jan-15 isn't recent enough to be a likely causal factor. Firefox has about twice as many extensions as Floorp, but it was running fine until late yesterday (it's now after 3AM). I couldn't get the extensions page to load, so I've attached a screenshot of C:\Users\Mike2\AppData\Roaming\Mozilla\Firefox\Profiles\oa7ou5xk.default-release-1715337056307\extensions There are several other profiles, but there's very little in them (one profile with a times.json & several profiles containing a parent.lock file)

Processor Intel Core i9-9980HK CPU @ 2.40GHz (2.40 GHz) Installed RAM 128 GB System type 64-bit operating system, x64-based processor MSI GT75 Titan 9SG

If I reinstall, will I lose all of my tabs?

Asked by Mike Landis 12 hours ago

Last reply by Mike Landis 3 hours ago

fullscreen/desktop bug

When I try to full screen any streaming site on Firefox I can see the desktop on the edges, the video isn't fully centered on the screen. I have tried updating Firefox, m… (read more)

When I try to full screen any streaming site on Firefox I can see the desktop on the edges, the video isn't fully centered on the screen. I have tried updating Firefox, my drivers, restarting my computer and even checking to make sure the resolution and aspect ration were good. Is there maybe an issue or bug I can try and resetting with a setting on the browser?

Asked by Natalia Navas 26 minutes ago

Bad Sync

Hi. I had to install a new OS disk. So, I created an account, and made a synchronization. Then, I made a security backup. When I installed the SO and Firefox, I logged i… (read more)

Hi.

I had to install a new OS disk. So, I created an account, and made a synchronization. Then, I made a security backup. When I installed the SO and Firefox, I logged in to sync. As soon as I logged, it automatically started to sync the random tiles it had after install. So, I had to use the places.sqlite and favicon.sqlite files. It got me half the tiles, and even those were misplaced. So, I had to go for the security html, and I finally got everything I wanted. But, now it says the account is not associated. If I login to associate it, when I shut down the PC, it returns to those half tiles, and out of order.

How can I get this right?

Asked by Titantropo 1 hour ago

Google Maps not working - FF 147.0.1 - extensions bypassed

When I go to google.com/maps, I immediately see a map drawing of my location - then as the site *finishes* loading, the display area CLEARS, leaving the menu and various … (read more)

When I go to google.com/maps, I immediately see a map drawing of my location - then as the site *finishes* loading, the display area CLEARS, leaving the menu and various "hover" items from the site.

Just...no "roads". 🤣 Just a big vanilla background image.

Google maps works in another browser - the issue is just in Firefox.

Currently on Win 10, running under Parallels on a MacBook Pro. (Maps works great under the Mac OS as well!)

Thanks,

 - Chip

Asked by ChipMoody 1 hour ago

Do tab groups have any command line options

Hey folks! Thanks for taking the time to look at this, simply put I am using the 'workspaces' app in windows power toys which allows me to open windows in specific confi… (read more)

Hey folks!

Thanks for taking the time to look at this, simply put I am using the 'workspaces' app in windows power toys which allows me to open windows in specific configurations to make a workspace. The app allows me to open other apps with CLI args, so I can open Firefox to a preset url, or even predefined set of tabs.

This has got me wanting to use my firefox tab groups as a way of opening "dynamic" windows in my workspace. All that would be needed is a way to open a specific tab group from CLI, or more specifically a CLI arg that I can input into power toys workspace.

Please let me know if there is a way to do this. I checked the Firefox CLI [https://wiki.mozilla.org/Firefox/CommandLineOptions|documentation] and didn't find anything though.

Asked by catocannizzo 1 hour ago

How do I prevent fake pop-up notices from Norton

A pop-up screen often appears when I use Firefox. It says hat I have a virus and that I need to call a phone number to remove it. It claims to be Norton,but I doubt that … (read more)

A pop-up screen often appears when I use Firefox. It says hat I have a virus and that I need to call a phone number to remove it. It claims to be Norton,but I doubt that it ts. I have attempted to remove this with Microsoft Defender, SuperAntiSpyware and Trend Housecall but none of them work. Can you help me?

Asked by beckyshoff@triad.rr.com 1 hour ago

Years of bookmarks disappeared from my MacBook Pro. Desperate to get them back.

Please tell me what to do to get the bookmarks back. Up to date Firefox: 147.01. Mac OS Sequoia: 15.5. I had the Toolbar and Bookmarks Library yesterday. All are gone t… (read more)

Please tell me what to do to get the bookmarks back. Up to date Firefox: 147.01. Mac OS Sequoia: 15.5.

I had the Toolbar and Bookmarks Library yesterday. All are gone today. I have already spent much time reading on Mozilla site and Reddit. I will have to go to Safari and work from there.

I will check back periodically to see if I get any help.

Thank you.

Janet

Asked by Janet Wallace 2 hours ago

Last reply by Janet Wallace 2 hours ago

Saving websites, emails, etc. even thou I've deleted them from my history

If I delete my history of the websites I go on or delete my emails in which I use Yahoo and Gmail is there a way to save them in case I need some information from them in… (read more)

If I delete my history of the websites I go on or delete my emails in which I use Yahoo and Gmail is there a way to save them in case I need some information from them in the future? Another words, they may be deleted in my history and I delete my emails in which i delete them also from my trash folder can I store them someone else that will let me see them in the future? Thanks

Asked by jkbaniasr 2 hours ago

firefox isn't re-opening tabs despite the setting being enabled

Recently Mint upgraded my FF to v147 - possibly relevant, possibly not. There's no post mentioning anyone having this issue on the Mint forum though. In my Settings, "O… (read more)

Recently Mint upgraded my FF to v147 - possibly relevant, possibly not. There's no post mentioning anyone having this issue on the Mint forum though.

In my Settings, "Open previous windows and tabs" is definitely enabled, but it doesn't happen. I only get my homepage custom URLs.

I went into troubleshooting mode and FF then behaves.

So I figured the issue must be with an extension - but I disabled all my extensions, and it doesn't help. Only going full troubleshooting mode fixes it.

What do I do next please?

Asked by Adam H. 9 hours ago

Last reply by Adam H. 2 hours ago

managing exceptions

I have entered in exceptions for a web page that Firefox continues to block....I have gone through your steps 4 times now...one time out of 4 you actually let the web pag… (read more)

I have entered in exceptions for a web page that Firefox continues to block....I have gone through your steps 4 times now...one time out of 4 you actually let the web page through....since then you don't again...what is wrong with your system? as I am not receiving a download link from the intended exception due to the fact you are not honoring it....

Asked by LadyMerish 2 hours ago

Last reply by LadyMerish 2 hours ago

Managing Profiles

Just lately, Firefox has been going on about Profiles, I don't know why. I have no need for such things, yet in my Windows menu, everything says "– Original profile" at t… (read more)

Just lately, Firefox has been going on about Profiles, I don't know why. I have no need for such things, yet in my Windows menu, everything says "– Original profile" at the end. All this does is make things difficult to see. How can I get rid of it, please?

Asked by Atom7 2 hours ago

Easy Screenshot stopped working properly

I have been using Easy Screenshot for years. Today I tried taking a screenshot and it opened a huge copy of the rectangular image I wanted to save in a new tab. Then th… (read more)

I have been using Easy Screenshot for years. Today I tried taking a screenshot and it opened a huge copy of the rectangular image I wanted to save in a new tab. Then there was no visible way to save the image. I used to get the option to save the image file in the same tab as the image I wanted to save. Took a screenshot and saved in Paint to show the contents of the Firefox window that image is huge and should have been 4 inches wide at most. Also the lack of how to save the image.

I'm wondering if this a because of the latest update. Firefox 147.0.1 X64 desktop WIN10 22h2 with ESU

When I tried reporting the problem on the add-on page the website it tried to connect to was not working so asking here for help.

https://mozilla.com.cn/addon/325-easyscreenshot/

Asked by SueWitch 4 hours ago

Payment methods not working

I am using Firefox 146.0 (64 bit), canonical-002 - 1.0 on Kubuntu 24.04. The browser will not store credit card information. If I enter correct information into a Web si… (read more)

I am using Firefox 146.0 (64 bit), canonical-002 - 1.0 on Kubuntu 24.04.

The browser will not store credit card information. If I enter correct information into a Web site, Firefox correctly queries whether I want to save this information. Clicking "Save" closes the dialog but when I look at "Manage payment methods" in Settings nothing is saved. Attempts to enter the information at this point fail as well. Note that the check box "Save and autofill payment info" is set.

Asked by Tim Allman 2 days ago

Last reply by Tim Allman 5 hours ago