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How to make the Start Page dark or black

In Firefox 74, I would like to make the default start page dark. Plugins will not work for this, and an I have not seen, option in the settings. I searched and I didn't s… (閱讀更多)

In Firefox 74, I would like to make the default start page dark. Plugins will not work for this, and an I have not seen, option in the settings. I searched and I didn't see anyone ask this specific question. Thanks in advance!

Mirai Chan 於 1 年前 詢問

cor-el 最近回覆 於 1 年前

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couldn't load xpcom

I have reinstalled FF a number of times after deleting Mozilla Firefox folder from Program Files Folder. After running the setup 74.0.exe file, FF loads and I use it repe… (閱讀更多)

I have reinstalled FF a number of times after deleting Mozilla Firefox folder from Program Files Folder. After running the setup 74.0.exe file, FF loads and I use it repeatedly during the day. Next day the same problem occurs "couldnt load XPCOM". I did add Mozilla Firefox to my Malwarebytes Allow list, but no effect on the problem. Any help is appreciated. Richard rrbryant@mst.edu

Richard1111 於 1 年前 詢問

FredMcD 最近回覆 於 1 年前

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playback error

In the last 24 hours or so, embedded youtube videos on Reddit are mostly not playing back. I get the "playback error" but the website itself works fine. I've found other … (閱讀更多)

In the last 24 hours or so, embedded youtube videos on Reddit are mostly not playing back. I get the "playback error" but the website itself works fine.

I've found other posts on the same error but not a resolution that works for me. I know Firefox updated a few days ago but it didn't start then, and I haven't changed or updated anything else. (Everything is up to date)

Brad 於 1 年前 詢問

irishtoon 最近回覆 於 1 年前

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PWA support on Firefox desktop

I have a question regarding PWA support on Firefox desktop. I am not sure how to frame this correctly, but I hope I am able to list the problem statement. Basically, I pl… (閱讀更多)

I have a question regarding PWA support on Firefox desktop. I am not sure how to frame this correctly, but I hope I am able to list the problem statement.

Basically, I plan to migrate my existing mobile and desktop website to single PWA based responsive website. Right now, I have mobile website which is a PWA, and a desktop website. Goal is to have a single PWA based responsive website for both mobile and desktop platform. However, I want to make sure the proposed website will work with Firefox desktop. From what I could find Firefox doesn't support option to install PWA as an app with it's own shortcut as it is possible in Chrome. But I want to make sure it supports rest of the features of PWA, and website still works correctly in terms of UI and experience as in case when it is accessed from Chrome browser.

Appreciate a response on this. In case you require more clarity on the problem statement, do let me know.

SK1010 於 1 年前 詢問

jscher2000 最近回覆 於 1 年前

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PR_END_OF_FILE_ERROR, connection problem.

After Firefox automatically updated two months ago, non stop problem with PR_END_OF_FILE_ERROR, connection problem when trying to open web pages that always opened before… (閱讀更多)

After Firefox automatically updated two months ago, non stop problem with PR_END_OF_FILE_ERROR, connection problem when trying to open web pages that always opened before. I have never had this problem before, have tried all troubleshooting and online solutions but nothing has worked. How do I fix this problem? Thank You,

Best Regards

globuselectric 於 1 年前 詢問

FredMcD 最近回覆 於 1 年前

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"EPERM: Operation not premitted" Error

Hi All, I am running Firefox V70.0 on Windows 10 and I have been battling for a while now to download video's via Firefox Video DownloadHelper V 7.3.9. I receive the EPRE… (閱讀更多)

Hi All, I am running Firefox V70.0 on Windows 10 and I have been battling for a while now to download video's via Firefox Video DownloadHelper V 7.3.9. I receive the EPREM error when i try downloading a video. I believe the Firefox V50 and below did not have this issue. Can anyone assist me in resolving this?

I know this question was asked before but i could not find a resolution for this error on the comments.

sudhir.r 於 1 年前 詢問

Eve 最近回覆 於 1 年前

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couldn't load XPCOM.

This also affects Google chrome Windows 10 pro . In the past 3 weeks Firefox will not open and error pops up saying "Couldn't Load XPCOM." ?? At the same time Google wil… (閱讀更多)

This also affects Google chrome Windows 10 pro . In the past 3 weeks Firefox will not open and error pops up saying "Couldn't Load XPCOM." ?? At the same time Google will not open ether . I've delete both and fresh install both and will work for 3-4 days and I'm back with the same Error ?? I have even set my computer back 2 months and still pop up error ??

bote110 於 1 年前 詢問

FredMcD 最近回覆 於 1 年前

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client certificate on smartcard leads to SEC_ERROR_LIBRARY_FAILURE

SSL client certificates do not work on Firefox 74.0 64-bit (Windows 10) and smartcards as expected. The smartcard gets accessed via PKCS #11 library. When the client cert… (閱讀更多)

SSL client certificates do not work on Firefox 74.0 64-bit (Windows 10) and smartcards as expected. The smartcard gets accessed via PKCS #11 library.

When the client certificate is placed into the software security module, Firefox can send it to the requesting web server and it works as expected.

Once the very same certificate was successfully imported into a smartcard and removed from the software security module, authentication fails in Firefox with "SEC_ERROR_LIBRARY_FAILURE". The nginx web server reports: SSL_do_handshake() failed (SSL: error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error:SSL alert number 80) while SSL handshaking, client: xxx.xxx.xxx.xxx, server: 0.0.0.0:443

When using Chrome, the same client certificate from the same smartcard gets used and successfully connects to the web server.

Is there a known issue for this? How can this problem be narrowed down? Is there some kind of debug log file to get further information?

0xFF 於 1 年前 詢問

cor-el 最近回覆 於 1 年前

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HTTP Error 404. The requested resource is not found.

Hi there, We have a weird problem with firefox only (not this problem with other web browser like Chrome, Ie or Edge). The problem is that we cannot browse this website … (閱讀更多)

Hi there,

We have a weird problem with firefox only (not this problem with other web browser like Chrome, Ie or Edge). The problem is that we cannot browse this website at the same time. No problem to browse one website, but going on the seconde one and you will get on 404 error.

Not Found ________________________________________ HTTP Error 404. The requested resource is not found.

Same error for 3 others.

Just waiting few minutes (at least 5min), refresh the second website, it’s working coming back on the first tab (with the first website), refresh and you get the error 404.

This problem occurs only when we are using IPV6 connexion on an HTTPS websites (only on some of ours web sites (https://www.ticpharma.com/home.php, https://www.techopital.com/ https://www.gerontonews.com, https://www.ticsante.com/home.php and https://www.apminternational.fr/). These 5 website sharing the same SSL certificats. It’s a multi domain SSL certificats provide by Gandi.net.

No problem when we use the Firefox PRIVATE windows. No problem when we browse theses websites in http and IPV6. No problem when we browse theses websites in httpS and IPV4. No problem with other browser in httpS and IPV6.

So only problem with Firefox, in IPV6 and HPPS. This problem occurs on multiple computers, with diffrent Anti-Virus, from different location, for different network and ISP provider. So I guess there is a bug somewhere in firefox.

Thanks for your help. Regards.

Seb. D 於 1 年前 詢問

Roland Tanglao 最近回覆 於 1 年前

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customizing colors

In Google search the default colors for links are blue for a link that I haven't looked at and a slightly different shade of blue. I have trouble seeing the difference be… (閱讀更多)

In Google search the default colors for links are blue for a link that I haven't looked at and a slightly different shade of blue. I have trouble seeing the difference between the 2. I have changed the link color of the link that I clicked on to orange. But when I change the "override colors specified by the page with your selections above" from "never" to "always". It changes the colors on the web page. How do I keep the orange color on visited links without effecting the colors on the web pages?

Steve

reble 於 1 年前 詢問

cor-el 最近回覆 於 1 年前

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Server not found

Since a January Firefox update, Firefox has been very slow to load websites and in many instances I get a "server not found" error message. Sometimes if I hit F5 during t… (閱讀更多)

Since a January Firefox update, Firefox has been very slow to load websites and in many instances I get a "server not found" error message. Sometimes if I hit F5 during the slow load the website does eventually load. If I get "server not found" and hit "try again" sometimes the web site loads, sometimes not.

Greg R. 於 1 年前 詢問

idnads8 最近回覆 於 1 年前

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Secure Connection Failed PR_CONNECT_RESET_ERROR

By using the last version of Firefox (74.0) when visiting a website with security connection I got the following error : "Secure Connection Failed An error occurred durin… (閱讀更多)

By using the last version of Firefox (74.0) when visiting a website with security connection I got the following error : "Secure Connection Failed An error occurred during a connection to .............. PR_CONNECT_RESET_ERROR The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem." With the previous versions of Firefox there was no such problem and I could visit the above website. So, please inform me what happened with ver. 74.0 ? By ver. 74.0 is no more supported some older security protocols which might have the above website, or this is a bug by the new ver. 74.0 ? Please inform me how this issue can be fixed ?

eladopoulos 於 1 年前 詢問

#367259 最近回覆 於 1 年前

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Errors accessing various sites .. "java.lang.ClassCastException: java.lang.Long incompatible with java.lang.String".

Unable to access various sites , and various keyboard operations are being ignored on other sites.. getting this error on some pages "java.lang.ClassCastException: java.l… (閱讀更多)

Unable to access various sites , and various keyboard operations are being ignored on other sites.. getting this error on some pages "java.lang.ClassCastException: java.lang.Long incompatible with java.lang.String".

g.j.slope28 於 1 年前 詢問

olly2 最近回覆 於 1 年前

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How to stop Google "ads" from trashing web sites?

Beginning today I have been experiencing web sites where the content is being repeatedly BLOCKED BY GOOGLE "ADS". I get one such brutish intrusion to go away but it is p… (閱讀更多)

Beginning today I have been experiencing web sites where the content is being repeatedly BLOCKED BY GOOGLE "ADS". I get one such brutish intrusion to go away but it is promptly replaced with yet another, seems to me criminal, interference with ever seeing the content of the web site that I intended to visit. "Reporting" the objectionable nature of their covering over the relevant content of the web site has done no good whatsoever. Does anybody know HOW Firefox can be set so as to stop Google from that massive trashing of everybody else's web sites?

bobgru 於 1 年前 詢問

Andrew 最近回覆 於 1 年前

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Window for Master Password pops up

Windows for Master Password pops up whenever i browse through a site where i have a saved password. I reload the site and i get asked again. I click on a link and i get a… (閱讀更多)

Windows for Master Password pops up whenever i browse through a site where i have a saved password. I reload the site and i get asked again. I click on a link and i get asked again and again and...

How can i switch this off?

pbl987 於 1 年前 詢問

aki66 最近回覆 於 1 年前

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How to recover Saved Login Password

Dear Concern, I reset my Firefox password & i Lost browser Saved logins & password . This logins & password is very much important to me. please help. … (閱讀更多)

Dear Concern,

I reset my Firefox password & i Lost browser Saved logins & password . This logins & password is very much important to me. please help.

Ashiq Khan 於 1 年前 詢問

cor-el 最近回覆 於 1 年前

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How to setup firefox email a link to this page using web Outlook

Is there a way that Web Outlook can be made to work with the email a link to this page button? I can not set my default mail program to Web Outlook in Windows 10. Thanks.… (閱讀更多)

Is there a way that Web Outlook can be made to work with the email a link to this page button? I can not set my default mail program to Web Outlook in Windows 10. Thanks.

ranchero60 於 1 年前 詢問

jscher2000 最近回覆 於 1 年前

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download goes to wrong location

In Options, I have C:\Downloads⁩ as the location that my internet files are downloaded. Instead, they go to a different location, specifically: C:/Users/**/AppData/Loca… (閱讀更多)

In Options, I have C:\Downloads⁩ as the location that my internet files are downloaded. Instead, they go to a different location, specifically: C:/Users/**/AppData/Local/Temp.

How do I make Firefox download my files to the correct location?

Thanks.

Lokimeister 於 1 年前 詢問

zach7 最近回覆 於 1 年前

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Firefox using "TLSv1 Record Layer" possibly makes company portal inaccessible

Since we switched to a new company portal ("intranet"), I can no longer use Firefox to access it. Chrome and Internet Exploder both work fine (on the very same machine, s… (閱讀更多)

Since we switched to a new company portal ("intranet"), I can no longer use Firefox to access it. Chrome and Internet Exploder both work fine (on the very same machine, same network, etc!).

The error message I get is:

An error occurred during a connection to <hostname>. PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.

Somehow this sounds like a certificate verification problem, but if that was really a problem, Firefox wouldn't continue starting the TLS handshake, right? But it does...

I used Wireshark to do network traces, and I can see that after the initial "client hello" the portal web server resets the connection. When I compared the snoop to one captured for Chrome, I noticed that the "client hello" Firefox sends uses a "TLSv1 Record Layer" in the "Client Hello," while Chrome uses a "TLSv1.2 Record Layer" in the "Client Hello."

I set "security.tls.version.min" to "2" already, but that didn't help.

I later also noticed that Chrome offers two TLS_RSA_WITH_AES_xxx_GCM_SHAxxx crypto suites, while Firefox doesn't.

My guess is that one of the above observations is likely the reason why Firefox can't connect.

Does that sound plausible to you? Why the difference in the TLS record layer? Why doesn't Firefox the above cypto suites? Are they considered insecure?

(Before you ask, unfortunately I can't give the host name to our portal, sorry.)

Many thanks for your help, this is really annoying me...

Kr,

Ralf

Ralf G. R. Bergs 於 1 年前 詢問

jscher2000 最近回覆 於 1 年前