Clipboard-related issues in Firefox

I'm using Firefox, updated to version 140.0.4, on my Windows 11 laptop. Since Edge is my primary browser, I normally only use Firefox for two particular websites that don… (read more)

I'm using Firefox, updated to version 140.0.4, on my Windows 11 laptop. Since Edge is my primary browser, I normally only use Firefox for two particular websites that don't work well in Edge. Beginning in March 2025, I've had a strange problem with one of those websites. In certain situations, words or phrases pop up in text boxes, meaning that if I want to type something, I first have to delete the word or phrase. Since it's a game website (not a video type game -- actually contract bridge) and the game is somewhat time-sensitive, this is very annoying. The words and phrases are ones that are appropriate to the website (i.e., not random), and seem to be the same in each session. That's why I labeled this as a "clipboard-related" issue.

Clearing the cache seems to help for a short time, but the problem always returns. <Ctrl>-F5 also helps, but seems to work for some text boxes but not others. In fact, <Ctrl>-F5 works for one type of text box, the type that I use most often, for the remainder of that session. But if I use one of the other text boxes, it doesn't help.

If that isn't strange enough, there are two additional oddities: For the other text boxes, the ones that are unaffected by <Ctrl>-F5, if I continue to use them, they eventually stop popping up words and phrases, again just for the remainder of that session.

The other oddity is that I'm using the free version of the LastPass plugin, and every time one of these words or phrases pops up, the LastPass symbol (a red box with three white dots) also appears at the right of the text box. This is completely inappropriate, since these text boxes have nothing to do with logging in or passwords. For this reason, I'm going to try to contact LastPass to ask about the same issue. However, their support isn't very responsive, so I'm hoping that somebody in the Mozilla forum will have a solution.

As I said, the problem only occurs on this one bridge website, and although I've been using Firefox to access it for several years, the issue never occurred before March 2025.

Asked by billschmidt 9 hours ago

Last reply by billschmidt 8 hours ago

Firefox refusing to open.

My copy of Firefox, installed on a MacBook Air, has suddenly decided not to open. When I click the icon I see a brief flicker on the screen but the application does not o… (read more)

My copy of Firefox, installed on a MacBook Air, has suddenly decided not to open. When I click the icon I see a brief flicker on the screen but the application does not open. Version is 140.0.4. Has anyone else experienced this?

Asked by tudogz1947 8 hours ago

Passwords, Bookmarks, Firefox Icon Disappeared

Under Settings; Privacy and Security, my Passwords have disappeared, and at the same time all of my Bookmarks disappeared also. While I was online this morning, all of a… (read more)

Under Settings; Privacy and Security, my Passwords have disappeared, and at the same time all of my Bookmarks disappeared also.

While I was online this morning, all of a sudden my Mozilla tab went blank and the Firefox Icon on the bottom tray disappeared too.

All 3 problems happened at the same time.

This is a disaster for me.

Can the Passwords be restored? What in the world happened to my system?

Thank you.

Asked by Bradley 9 hours ago

Someone hacked my acct

I tried to change my password but could not find an acct key, don't even remember having one! This is a new computer and it worked fine until I say that you are showing a… (read more)

I tried to change my password but could not find an acct key, don't even remember having one! This is a new computer and it worked fine until I say that you are showing a very old picture for my account and showing I'm still on Windows 10!!! That is VERY OLD and I've used Firefox for years!!! I changed from Windows 10 to 11 on 7-1-25. Someone has hacked my account I guess!

What to do???

Asked by S Hinson 10 hours ago

Buttons onwebpage

I have had this problem on several websites, but most recently Xfinity. com. Pages in their rewards page have buttons to accept a reward. These buttons don't show up i… (read more)

I have had this problem on several websites, but most recently Xfinity. com. Pages in their rewards page have buttons to accept a reward. These buttons don't show up in firefox, but if I use chrome they appear and work properly

Asked by mc8452 10 hours ago

Animated SVGs much worse performance than chromium.

https://gist.github.com/ben-j-c/6d15852955d04c9018600d15d4a8a13e Context: Here is an animation I generate with a program I'm developing. It being an SVG makes it useful … (read more)

https://gist.github.com/ben-j-c/6d15852955d04c9018600d15d4a8a13e

Context: Here is an animation I generate with a program I'm developing. It being an SVG makes it useful to open in a web-browser. In chromium based browsers I have smooth animation, while in firefox I get much worse performance. At larger animations the problem becomes much more apparent. This is the approximately the largest animation that firefox can handle without lagging too much.

Expected: Firefox should have comparable SVG animation performance as chromium.

Asked by benjamin.j.correia 10 hours ago

Firefox shows screens from previous sessons every couple of minutes.

Hello... So, a couple of weeks ago, there was a 15-hour blackout during a Windows 11 update. I had exited firefox, and was shutting the laptop down, and it asked if I wan… (read more)

Hello... So, a couple of weeks ago, there was a 15-hour blackout during a Windows 11 update. I had exited firefox, and was shutting the laptop down, and it asked if I wanted to update and shut down (or other options). I chose update and close. When the lights came on and the router booted back up, Windows finished updating. It works, but here is the rub: whenever Ffox runs, a couple of minutes into the sessions, it will start displaying previous session screens, screen saver-like: one after the other every ten seconds or so. I can't X out, because it disappears whenever I move the cursor. The images appear not only on Ffox, but cover whatever other app's screen until I move the cursor, which is irritating when you're trying to meet the deadline on a novel! Please help! I am running version 140, by the way.

Asked by Jan Benschop 11 hours ago

Issue when scrolling

This started today 16-July-25, when scrolling on a web page whenever I stop scrolling with either my finger or my Dell active pen Firefox brings up a window with the site… (read more)

This started today 16-July-25, when scrolling on a web page whenever I stop scrolling with either my finger or my Dell active pen Firefox brings up a window with the site's images with a view button. I don't recall changing any settings or preferences, any and all help is appreciated. Leonard R.

Asked by LimaEchoOscar 12 hours ago

Donating via credit card on Firefox

The following problem has occurred at least three times, each with a different organization. In making an online contribution, I first enter my personal information-name… (read more)

The following problem has occurred at least three times, each with a different organization. In making an online contribution, I first enter my personal information-name, address, email, etc--and then move on to enter credit card information. When I enter the credit card information, the personal information disappears. When I re-enter the personal information, the credit card data disappears. Eventually, I wind up calling the intended recipient and giving them all this information verbally. What is going on with Firefox? How can this problem be fixed?

Asked by aelstein30 12 hours ago

Can not drag maximized page.

If a page is maximized I can not move it - I have to click on the 'intermediate' of the three choices (minimize, intermediate, maximize) before I can move it or resize it… (read more)

If a page is maximized I can not move it - I have to click on the 'intermediate' of the three choices (minimize, intermediate, maximize) before I can move it or resize it.

I have three monitors. It's the same behavior on all three.

Asked by rjrjack 13 hours ago

Firefox will not resolve any web pages

For the last day or so, Firefox is refusing to resolve any web pages. I have had to write this in Safari, so I can't share the data from Firefox. Sorry. Please help, tha… (read more)

For the last day or so, Firefox is refusing to resolve any web pages. I have had to write this in Safari, so I can't share the data from Firefox. Sorry.

Please help, thank you :)

2017 iMac, OS 13.6.9, Firefox 140.0.4

Asked by Atom7 16 hours ago

Last reply by Atom7 13 hours ago

Screenshot tool uses not the "selected" download folder

I am on a Mac desktop. I’m using my desktop as a regular download folder (browser.download.dir = /Users/username/Desktop). BUT the screenshot tool (which is great) always… (read more)

I am on a Mac desktop. I’m using my desktop as a regular download folder (browser.download.dir = /Users/username/Desktop). BUT the screenshot tool (which is great) always stores the file in (/Users/username/Downlods). Thats boring.

Asked by office480 13 hours ago

ChatGPT

Every time I close a window in firefox while I am connected to ChatGPT I get logged out. It does not save my password. I have to sign in all over again. How can I stay si… (read more)

Every time I close a window in firefox while I am connected to ChatGPT I get logged out. It does not save my password. I have to sign in all over again. How can I stay signed in the ChatGPT_

Asked by spiderweb 14 hours ago

Firefox will not open. Says: cannot find server v3lpea6ndyxwl4.azureedge.net

Fix it. Tnx, Larry Yesterday I got a full page notice that told me my access to Firefox will be shut down because my Defender detected that I had stepped in some SHXT whi… (read more)

Fix it. Tnx, Larry Yesterday I got a full page notice that told me my access to Firefox will be shut down because my Defender detected that I had stepped in some SHXT while visiting something in Firefox. They gave me a phone number of Microsoft something to call to fix it. I did not call because it seemed like malware, I guess it wasn't because soon after Firefox would not load. I will get this when I try: Says: cannot find server v3lpea6ndyxwl4.azureedge.net , I have run Malwarebytes and Defender and rebooted. Any ideas?

Asked by larry copas 14 hours ago

Last reply by larry copas 14 hours ago

Firefox doesn't display ufc.com while other browsers do

Since a recent update, whenever I try to go to ufc.om, Firefox shows me the error in the attached image. It used to display ufc.com without issues before the update [ don… (read more)

Since a recent update, whenever I try to go to ufc.om, Firefox shows me the error in the attached image. It used to display ufc.com without issues before the update [ don't remember which update ].

Other browsers [ Chrome and Edge ] display ufc.com without issues.

Asked by sometibguy 2 days ago

Last reply by sometibguy 16 hours ago