Diễn đàn hỗ trợ Firefox

In Firefox version 149, there is an issue with print preview behavior for HTML <select> elements. When opening print preview, all <option> items inside a dropdown are displayed and included in the print output.

This behavior differs from Firefox 148, where only the selected option is rendered correctly during print preview.

Steps to reproduce:

- Create an HTML page with a <select> dropdown containing multiple <option> elements. - Select one of the options. - Open print preview (Ctrl + P).

Expected result: Only the selected option should be visible and printed.

Actual result: All options inside the <select> element are displayed and printed.

Impact: This issue breaks the layout of printed documents and makes forms difficult to read, especially when dropdowns contain many options.

I'd like to ask about Firefox's behavior and settings. I'm using Firefox with vertical tabs (using an add-on), but it seems to be behaving strangely. The things that have changed since before are: 1. Open from pinned tab 2. Now opens in a new tab → Previously it opened in the same tab 3. Clicking on a newly opened tab opens a new tab again → Previously it would open pinned tabs/same tabs → in a new tab It has changed. I haven't changed any of my Firefox settings. Windows 11 Home 23H2 Firefox version 139.0.4 (64-bit).

When I go to YouTube to watch videos the Vid's always stop after a short time. The refresh page and back buttons do not work and neither does the ability to click on any links on the page. I have to close the tab and start again. The issues still occur on new tabs. Eventually I have to close FireFox altogether but when I try to open FireFox again it does not work or takes a few minutes and sometimes the message Firefox is still running. At times I have had the sound of the videos, when they do play, from YouTube still playing even when the browser is closed.

https://e-nidhi-v2.bihar.gov.in/rms-portal-ui/rms_ReceiptCreation?encData=UFZqAwDuBYzX6ZQzmu+VZHV6+fuPgynQ/jRnxZnRoKH+GxOgBWXCYdUI5pDkY7NECYy5Rj+YlFTzJ+UexVutGLrHwTFpRmmfH5FyapDzSCHWc45ILydXpv7s5ZapRBtUWojdy4tB29IBpNXiZPhC3RqZDmGtk/EftbjbwOGjinc/eJVzeZYSn83C10RaD5sIYmPAh6bJI2x9GpQllbpQLtmZN012KcYfnwQI5iZkLkeXMbvJ7u4EI3TQ4qmmqGjFSDNOLove7XgigcTVmKCTGjyMYrlDnPyqX1xvm93K1AHV/z/kPcoDcSjLFdSq3yWV6ev83tjgroxeMdVGT1i7u6YCi1+RLeIkYO6nKODfXbXJTuejieLw4WaMYn4WUxrKsvopuARO57eqk7VR2nMmMzqsGj7VlV8l25Krg+p4BMguytLpwfovEmu21QuHD9pW58qtPeg39V2M824j9uguUKYe3wjk8b2CRDOAgu3AlO/jqQuYmplO/3BmYxQXEZWXgpe2oa1O6BHNT80gus5Y5smc/k+dfTdaA6K3qu1Di/oay22NExJcPm4pppddbMS9/l6unSrjfjs41RaVt1FFL015KtqH6AaQiVmAstmaAKwNJT3pyz3Gj7HBFhaQUlWiukr8wRxDGgoiSsKcUclPDbI1ODyc1tygn+XuPNyYF7GBslRLP+aOnWDLTQw8XL3L2kXIExRQgrJA7L4GNVrOir5Cc/f1B7xHfoV0uzZMm/62KUF02DpUQJoriOExBLK83xWApjegmo4mFk/YKAEUVIfMpWj1WsH72sfZd0LHHcCGJ1XdInAdWTzH6noJE8Py0CPAo/Gd/l0IiSYcra1Z/+7HKbeEUxysV/3GfVt4u4DGDjTM8ZSXfahufQrjHcKE1xjyoqv4WWKFgpHqGykwWfmePCZRUl+bXAi4ezGn55AeE8gywn5r/D/NaAgF0A49&merchant_code=REGISDEPT

Peer’s Certificate issuer is not recognized.

HTTP Strict Transport Security: false HTTP Public Key Pinning: false

Certificate chain:

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With vertical tabs and expand on hover, clicking on the X box rarely closes the tab. Sometimes I have success if the pointer is on the left or right line of the box. Not having luck on the center of the box. Has been true for several weeks. With hover off, clicking the X works fine. I am running Windows 11.

Windows 11 Firefox crashed on opening continuously so unable to safe open etc. Did update intel graphics to no avail. Uninstalled in add programs in settings. Did not choose to delete data. Reinstalled and now can't find my profile.

Recently transferred from Chrome. My understanding was Firefox private browsing was supposed to work similarly to chrome incognito mode; once you close the browser, all local files are deleted and cookies are cleared.

However, with Firefox it maintains my logins. If I log into an account while private browsing and the close the browser, I’ll still be logged in next time I go to the website even if it’s days later (and I have never logged into this account in a non-private browsing window!)

I never had this issue using chrome incognito, so it seems to be a Firefox problem.

Is this just not something Firefox supports? Is there any way to prevent storage of cookies and private data?

Whenever i search something on google, firefox desktop (all fine on android) is failing to display the ai(gemini) answer no matter what questions i ask.

Same happens in the "AI Mode" option that is available in google's recent update.

And, I,m logged in.

This started since a week, everything was working fine before that.

Adding the images below.