Diễn đàn hỗ trợ Firefox

Hello, I am using firefox 83.0 and I don't want to update it (Why? Because I've an old PC with poor hardware and the playback of online videos is lagging/shuttering in releases after 83.0)

BUT firefox 83.0 doesn't support private fields which make some webpages unable to be loaded. the private fields was supported starting in release 90.0 and I'm using 83.0

So, I need a way to make firefox 83.0 support private fields, Is that possible? Is there a certain files should I edited or replaced to make it support private fields?

Any ideas would be appreciated.

At some point in the winter of '21 I created a folder of bookmarks that was saved in the 'bookmarks menu'. At a later date, hard to say when but probably '22 or early '23 I deleted these bookmarks. I now desperately need to recover them.

The oldest auto-backup from 'Manage Bookmarks' -> 'Import and Backup' -> Restore is dated mid '23 and does not contain the deleted bookmarks.

Is there any hope of recovering them? For example via the Recycle Bin or by using a data recovery tool? Or will they have been overwritten?

When I check Firefox for add ons (Manage your extensions), I see the two that I installed. When I use "Help -> Troubleshooting Information" "Application Basics": Multiprocess Windows "Remote Processes" , I see in addition: Amazon.co.uk Amazon.com DuckDuckGo eBay Wikipedia

How do I eliminate these?

Bank longin blocked after recent Firefox update. Using Microsoft Edge, bank login worked. Do I have to go back to Edge or is there a fix? Block is by Cloudflare. Bank had me try another browser and when edge worked, they suggested updating Firefox. I checked and noted a 02/20/2024 FireFox update.

If I am on a web site and click a link to another page on the same website Firefox opens a new tab rather than displaying it in the existing tab. How do I get Firefox to NOT do this?

On homesnap web site I get a pop-up window for homes.com. I can't get back to homesnap & I can't get rid of the window to redirect to homes.com. What can I do? Thanks

I'm running the latest FF under Win7. Seems that whenever I go to the Merriam-Webster (dot) com site, after a few seconds, my disk activity light goes solid, and the FF CPU usage spike to 10-25%. One time, to regain control of my system (because everything seemed hung) I actually had to resort to the physical power-down switch. Obviously I immediately ran a virus scan upon coming back up (scan showed all okay). Now, if I stay away from Merriam-Webster, FF behaves normally. But it's a damned dictionary site. I occasionally will need to use it or stumble into it. I've used MW in the past without problems. Does anyone know what's going on?

Just a couple of quick questions for CSS coding as of Firefox 115:

What CSS code refers to the shield, padlock, permissions, or all other toolbar buttons in the address bar?

When using control to select multiple tabs, what code refers to the outline and text color of the tabs?

Images attached for reference.

Thanks in advance!

Since the recent installation of the latest version of Firefox I am getting a simple 'Forbidden' message when I attempt to get to the Go Outdoors web site. I also get the same result when attempting to go to Blacks, another outdoor supplies provider similar to Go Outdoors.

I can't play certain games on pogo.com. I had a version of just Firefox I used before & it worked great. If anyone could please help, i would appreciate it, thanks!

When trying to download a college lecture, instead of downloading, the file opens and runs in a new tab. In General Settings "Save files to" is set to "Downloads" and "MP3 file (audio/mp3)" is set to Save File. This worked fine for several years until the last few months. It currently works correctly in my Chrome browser, but I prefer using Firefox.

I keep getting 'Gah. Your tab just cashed' notices for nearly all my tabs and also Youtube keeps buffering and finally just goes black. I used trouble shooting modebut that didn't help