Firefox 社群討論區

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'm not sure if this is a FireFox issue or a google glitch, but here goes. Please give me direction on how to correct the above mentioned problems.

Thanks in advance for your time.

 Mary

I have a Brother DCP-L2550DW printer that is connected via a network cable. Any other browser, i.e. Edge or Chrome, seem to be able to connect and print just fine. Firefox fails to print and there is no information about why. I have checked Event Viewer, turned off all the extensions, tried the about:config to reset printer options. Every single suggestion I've found so far fails to fix it. I have a great deal invested in using Firefox (bookmarks, etc.) so I'd like to keep it as my default browser, but not being able to print is SO annoying. Any suggestions?

Anyway, Im Trying To Print An Email Message To a PDF File But Instead I Get An Error Message That Says :

Could Not Open The File Access Is Denied!

Is There A Way To Fix This? If So How Do i Fix This?

I have an Arch Linux installation with Plasma desktop. Software is always kept up-to-date. Sometime recently, Mozilla apps, Firefox nor Thunderbird, will no longer print, neither to pdf nor to network printer. These always worked before. Now, if even "print preview" is invoked, the dialog opens as a blank sub window with only the word "Print" in upper right, and at left center is "Preparing Preview with rotating time delay wheel, which never resolves. All other apps, including other browsers and mail handlers, will print without issue. I've tried the obvious checks with no success. Where could be the problem? Is there a helper app shared by Firefox and Thunderbird that could be the issue? The only potential remedy I have not yet tried is complete removal of both Firefox and Thunderbird, as that would cause re-configuration issues for both. It's necessary to press <ESC> to terminate the print window when it fails to respond. Screenshot attached...

'Running ver 137 and now cannot print to my system default printer. Tried the Troubleshoot fix and same result - defaults to PDF. Is there any entry in about:config to ensure system printer is selected. I have checked all system settings and brother printer is the default.

Hello, After Firefox removed about:config option from Beta and Nightly, can you tell me how to remove Header and Footer when I print documents? I don't want to include URL, dates, times etc. but a clean document or file?

HI,

I updated recently the Firefox installation on my Mac to 139.0.1. I noticed that I can no longer print from certain websites using Firefox. One example is from Alaskair, where I tried to print a ticket and it was just sitting there trying. I had no problem printing the same with Safari.

Is this a known problem? Any suggestion (other than just give up on Firefox and use Safari) for what to do about this?

Every time I update Firefox, new bugs cause annoying problems. That's why I usually not updating for a long time.

Thanks.

After I print a page, Firefox seems to remember most of the options I chose for next time.

For example, if I print using some custom margins, Firefox will default to those same custom margins the next time I print a page. The same for duplex options - Firefox remembers that I want to print double-sided and with "Flip on short edge".

However, it doesn't remember my "pages per sheet" settings. It's annoying because I always print 2 pages per sheet, but Firefox defaults to 1. So I need to change that setting to 2 every time I print. If I forget, I wastefully use twice as much paper.

I've checked in about:config and `print.save_print_settings` is set to `true`. Like I say, most of my settings do get saved, but not "pages per sheet".

Is there anything I can do to set a persistent preference for this?

I am unable to print after upgrade to ver 144.0 The print preview just spins. I can print these web pages using Edge. This same thing happens with new version of Thunderbird. Can't print email either. John Stark

Hello, I hope somebody can give me some guidance about two issues that are driving me crazy. To provide some context, I use Firefox to work from home and my primary interest is accessing government and bank sites from my country to fill out tax forms and pay said taxes, therefore the browser built in provisions that deal with web page development, shortcuts, Artificial Intelligence, Social Media are utterly useless to me. The issues are as follow: 1. I regularly access the website of the federal tax authority of my country and local state hundreds of times each day. After a while, normally two months, Firefox starts to behave like a drug addict: It develops a resistance to the security cookies from these sites that worsens over time, until eventually the websites plain out kick me as soon as I log in. The only workaround is to use Privacy Mode or another browser until Firefox starts to behave again. In 2026 this started to happen with the bank website too. 2. After a fit of rage after a failed task I was in the process of attemping to destroy the mouse when reason finally prevailed but not before I got another issue with Firefox: The browser now prints (To PDF and paper) every single item from dropdown menues in webpages that cointan these elements. I already tried re-installing the browser, doing a clear install, erasing cache and cookies, deleting profiles. Thank you for any guidance.

Hey all, I'm hoping someone can help me. I have found no answers online to date.

I cannot print from the Firefox browser. When I click the print button, my printer spits out a blank page.

I can print from any other browser, Word, Excel, PDF files, anything except for Firefox. This may not be as much of an issue if Firefox wasn't my primary browser, so when I start doing work on it and find I need to print something at the end, it's a problem.

My printer software is up-to-date, I tried resetting the printing preference to default (assuming I did this correctly), and I even uninstalled and re-installed Firefox (which was a disaster). None of this helped.

Is there one of you who may be able to provide me with the help I need?

I appreciate your effort greatly.

It would be easier to understand if there was actually a paper size setting, but there isn't. The alternative of changing settings on three different printers to get back to A4 seems ridiculous to me and I don't have 3 printers to circulate among. Why is Mozilla convinced everyone wants Letter size as default? Sorry about the grumps, but there you are.

Ever since the latest Firefox upgrade to version 135.0, my Epson 3760 printer pauses between each page when more than one page is requested to print continuously. This pause before each page didn't happen before the upgrade. I now have to go into my printer queue and select each item in the queue to have it resume printing - one at a time. I'm on Windows 11 with an LG laptop.

I cannot access the Epson ET-2850 Drivers and Utilities Combo Package Installer since the time has expired.

I checked and the clock in my computer is accurate.

ftp.epson.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

Here is the route to the certificate: about:certificate?cert=MIIFEDCCA%2FigAwIBAgISA4W1Vp9Fp%2BtA4mzhlmbRpP2xMA0GCSqGSIb3DQEBCwUAMDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQDEwNSMTAwHhcNMjUwMjIyMDY0MDE5WhcNMjUwNTIzMDY0MDE4WjAgMR4wHAYDVQQDDBUqLnN1cHBvcnQubW96aWxsYS5vcmcwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCc4CkVOprLysz1BgWXh3SJeVa4czz379edcy2xpHewMSZfVp984X4CRLInjdDPigwJ3L6x%2FZaQufbnQ1ZenXbdpuAWPyHO6Zf8WFCN910VxJ6bcSbUwz2AF75PKWkt9fS9JBEjWB7Pa8B%2BWkn2e9NvHGVY8NWW%2BhmDl0vB7tl4h4ETRrrtlAOoi8e%2F2DbVBdYesLe8QGSWv98uPRoioHXJptyIC9wCXCty6FTqrzhMmKsCJ%2B1i5Ry2%2BMgQsS3S4KQ5YccdACiWdwMU6zjqOXkv%2BZF8bcp0Q8g6xHRxEZ1YcEfNdr8CfUBLS978rVgo1fRI%2FvUMKVf6NoyMQCZ3ersBAgMBAAGjggIvMIICKzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB%2FwQCMAAwHQYDVR0OBBYEFCUHMGlgTqJBxWMccLCv%2Bb7uqtGQMB8GA1UdIwQYMBaAFLu8w0el5LypxsOkcgwQjaI14cjoMFcGCCsGAQUFBwEBBEswSTAiBggrBgEFBQcwAYYWaHR0cDovL3IxMC5vLmxlbmNyLm9yZzAjBggrBgEFBQcwAoYXaHR0cDovL3IxMC5pLmxlbmNyLm9yZy8wNQYDVR0RBC4wLIIVKi5zdXBwb3J0Lm1vemlsbGEub3JnghNzdXBwb3J0Lm1vemlsbGEub3JnMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBBQYKKwYBBAHWeQIEAgSB9gSB8wDxAHYAzPsPaoVxCWX%2BlZtTzumyfCLphVwNl422qX5UwP5MDbAAAAGVLJg8UgAABAMARzBFAiEA5aumMKrkIIgjT1ts%2B0XenIc2QZ9o5FM57slhpxzB%2Bh8CIFPwN7548LJvrOQqqX2Kj3V32mDHAoYUXgC%2FZKgf17p%2FAHcAE0rfGrWYQgl4DG%2FvTHqRpBa3I0nOWFdq367ap8Kr4CIAAAGVLJg9cAAABAMASDBGAiEAmBHF3Woo%2FWn4TTKmuSwhqfm4f46CrLNNIyO5inEeVgECIQDrR8uP%2BqKVGCVjZnW1IRA404Kw1g5vgkHXUDxUld9DqzANBgkqhkiG9w0BAQsFAAOCAQEAEGMyn%2Fzsu0btU7XHtYWf2hFRVU7H3BxSFIciQRiqVU2KEWao9C31goOsl3FLcvyGUghJZ2KklpKfDd%2Bu9uvysjEcIzZDQPYb3HMkfLrcDP7hMaZBTFmj6jnDng0POZg7Z1%2B3cdFu3ZTW39tpeq8e8hA%2Bgl4KSrAOW%2ByFBvYgU7KfOdtFj4mE6%2BV4HJTJHp1HOH8xp0p6nHQf9tSN6hpKRXPGAknZUdEfG0PDK0VK5Iil35qZiSmJoBD8PVJ7j4p4k2uzF0suXMlgT91KTTA1KTpq1lulanc%2BqrWKRwMlnTx4AnW%2BN%2B5VgXfBds%2BpWyPaOYWaDZT%2BEvFY1VMHby3%2FOA%3D%3D&cert=MIIFBTCCAu2gAwIBAgIQS6hSk%2FeaL6JzBkuoBI110DANBgkqhkiG9w0BAQsFADBPMQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJuZXQgU2VjdXJpdHkgUmVzZWFyY2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBYMTAeFw0yNDAzMTMwMDAwMDBaFw0yNzAzMTIyMzU5NTlaMDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQDEwNSMTAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDPV%2BXmxFQS7bRH%2FsknWHZGUCiMHT6I3wWd1bUYKb3dtVq%2F%2BvbOo76vACFLYlpaPAEvxVgD9on%2FjhFD68G14BQHlo9vH9fnuoE5CXVlt8KvGFs3Jijno%2FQHK20a%2F6tYvJWuQP%2Fpy1fEtVt%2FeA0YYbwX51TGu0mRzW4Y0YCF7qZlNrx06rxQTOr8IfM4FpOUurDTazgGzRYSespSdcitdrLCnF2YRVxvYXvGLe48E1KGAdlX5jgc3421H5KRmudKHMxFqHJV8LDmowfs%2FacbZp4%2FSItxhHFYyTr6717yW0QrPHTnj7JHwQdqzZq3DZb3EoEmUVQK7GH29%2FXi8orIlQ2NAgMBAAGjgfgwgfUwDgYDVR0PAQH%2FBAQDAgGGMB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcDATASBgNVHRMBAf8ECDAGAQH%2FAgEAMB0GA1UdDgQWBBS7vMNHpeS8qcbDpHIMEI2iNeHI6DAfBgNVHSMEGDAWgBR5tFnme7bl5AFzgAiIyBpY9umbbjAyBggrBgEFBQcBAQQmMCQwIgYIKwYBBQUHMAKGFmh0dHA6Ly94MS5pLmxlbmNyLm9yZy8wEwYDVR0gBAwwCjAIBgZngQwBAgEwJwYDVR0fBCAwHjAcoBqgGIYWaHR0cDovL3gxLmMubGVuY3Iub3JnLzANBgkqhkiG9w0BAQsFAAOCAgEAkrHnQTfreZ2B5s3iJeE6IOmQRJWjgVzPw139vaBw1bGWKCIL0vIozwzn1OZDjCQiHcFCktEJr59L9MhwTyAWsVrdAfYf%2BB9haxQnsHKNY67u4s5Lzzfdu6PUzeetUK29v%2BPsPmI2cJkxp%2BiN3epi4hKu9ZzUPSwMqtCceb7qPVxEbpYxY1p91n5PJKBLBX9eb9LU6l8zSxPWV7bK3lG4XaMJgnT9x3ies7msFtpKK5bDtotij%2Fl0GaKeA97pb5uwD9KgWvaFXMIEt8jVTjLEvwRdvCn294GPDF08U8lAkIv7tghluaQh1QnlE4SEN4LOECj8dsIGJXpGUk3aU3KkJz9icKy%2BaUgA%2B2cP21uh6NcDIS3XyfaZQjmDQ993ChII8SXWupQZVBiIpcWO4RqZk3lr7Bz5MUCwzDIA359e57SSq5CCkY0N4B6Vulk7LktfwrdGNVI5BsC9qqxSwSKgRJeZ9wygIaehbHFHFhcBaMDKpiZlBHyzrsnnlFXCb5s8HKn5LsUgGvB24L7sGNZP2CX7dhHov%2BYhD%2BjozLW2p9W4959Bz2EiRmqDtmiXLnzqTpXbI%2BsuyCsohKRg6Un0RC47%2BcpiVwHiXZAW%2Bcn8eiNIjqbVgXLxKPpdzvvtTnOPlC7SQZSYmdunr3Bf9b77AiC%2FZidstK36dRILKz7OA54%3D&cert=MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAwTzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2VhcmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMTUwNjA0MTEwNDM4WhcNMzUwNjA0MTEwNDM4WjBPMQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJuZXQgU2VjdXJpdHkgUmVzZWFyY2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBYMTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAK3oJHP0FDfzm54rVygch77ct984kIxuPOZXoHj3dcKi%2FvVqbvYATyjb3miGbESTtrFj%2FRQSa78f0uoxmyF%2B0TM8ukj13Xnfs7j%2FEvEhmkvBioZxaUpmZmyPfjxwv60pIgbz5MDmgK7iS4%2B3mX6UA5%2FTR5d8mUgjU%2Bg4rk8Kb4Mu0UlXjIB0ttov0DiNewNwIRt18jA8%2Bo%2Bu3dpjq%2BsWT8KOEUt%2Bzwvo%2F7V3LvSye0rgTBIlDHCNAymg4VMk7BPZ7hm%2FELNKjD%2BJo2FR3qyHB5T0Y3HsLuJvW5iB4YlcNHlsdu87kGJ55tukmi8mxdAQ4Q7e2RCOFvu396j3x%2BUCB5iPNgiV5%2BI3lg02dZ77DnKxHZu8A%2FlJBdiB3QW0KtZB6awBdpUKD9jf1b0SHzUvKBds0pjBqAlkd25HN7rOrFleaJ1%2FctaJxQZBKT5ZPt0m9STJEadao0xAH0ahmbWnOlFuhjuefXKnEgV4We0%2BUXgVCwOPjdAvBbI%2Be0ocS3MFEvzG6uBQE3xDk3SzynTnjh8BCNAw1FtxNrQHusEwMFxIt4I7mKZ9YIqioymCzLq9gwQbooMDQaHWBfEbwrbwqHyGO0aoSCqI3Haadr8faqU9GY%2FrOPNk3sgrDQoo%2F%2Ffb4hVC1CLQJ13hef4Y53CIrU7m2Ys6xt0nUW7%2FvGT1M0NPAgMBAAGjQjBAMA4GA1UdDwEB%2FwQEAwIBBjAPBgNVHRMBAf8EBTADAQH%2FMB0GA1UdDgQWBBR5tFnme7bl5AFzgAiIyBpY9umbbjANBgkqhkiG9w0BAQsFAAOCAgEAVR9YqbyyqFDQDLHYGmkgJykIrGF1XIpu%2BILlaS%2FV9lZLubhzEFnTIZd%2B50xx%2B7LSYK05qAvqFyFWhfFQDlnrzuBZ6brJFe%2BGnY%2BEgPbk6ZGQ3BebYhtF8GaV0nxvwuo77x%2FPy9auJ%2FGpsMiu%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