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Firefox not loading JS and CSS files

Firefox 87.0 / MacOS, in safe mode, with and without enhanced protection. Mostly after clearing cache. Server is Apache, running WordPress. Other browsers (Chrome, Opera… (read more)

Firefox 87.0 / MacOS, in safe mode, with and without enhanced protection. Mostly after clearing cache. Server is Apache, running WordPress.

Other browsers (Chrome, Opera, IE) have no problems.

Using HTTPS.

Page itself (HTML) loads correctly. The referenced (linked) files do not load, even though they are on the same server.

When I look at the Network Analysis tab, I see that the CSS and JSS files have no return codes, and show 0 Bytes transferred. It does not show the data coming from the cache. A detailed look at the request looks normal, the answer is not available. When I resend the request I get an answer, no problem.

No messages in the console.

It seems to have something to do with the server, when I deactivate certain WP plugins, the problem disappears. Perhaps the problem is worse when the server is slow... cannot prove this.

I am looking for what I can do on the Apache side to fix the problem.

Thanks in advance, Ron

Asked by otrok7 6 hours ago

Saving to wrong location

deets: v87 via flatpak on debian(buster) No matter where I save a file the lastdir is always "/run/user/1000/doc/*some random folder name, that changes each time*". manu… (read more)

deets: v87 via flatpak on debian(buster)

No matter where I save a file the lastdir is always "/run/user/1000/doc/*some random folder name, that changes each time*".

manually changing browser.download.lastDir causes the next attempt to save to go to the desired folder, but a second attempt reverts to /run/user/1000/doc/abcd123.

Has anyone any idea whats going on?

Asked by buckmulligan26 1 week ago

Last reply by buckmulligan26 7 hours ago

''Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.''

I am using Windows10, Version 20H2 (OS Build 19042.928) with all available patches installed as of 04/14/2021, and am using Firefox 87.0 (64-bit) as the default browser. … (read more)

I am using Windows10, Version 20H2 (OS Build 19042.928) with all available patches installed as of 04/14/2021, and am using Firefox 87.0 (64-bit) as the default browser. I have suddenly begun to get the subject error message (Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.) in Firefox, whenever I try to open an email web link from within Thunderbird. Until a few days ago, the email web link always opened up in a new Firefox browser tab.

If I change the default browser to something else, the email web link opens in a new tab in that browser.

I have tried every solution that has been recommended in this support forum to no avail. The error pops up even when Firefox has been started in safe mode. I have created new profiles to no avail. I have even gone so far as to totally uninstall Firefox, then manually rename all of the Firefox directories in my user profile and then install a clean version of Firefox. So far, I have not been able to get rid of the problem.

Any suggestions would be appreciated.

Asked by gczerw 1 day ago

Last reply by gczerw 8 hours ago

Arrow keys don't repeat

Somewhat recently, when editing text in any text field in Firefox (87.0 64 bit), I noticed the arrow keys don't repeat when held down. Other keys do just fine, but the ar… (read more)

Somewhat recently, when editing text in any text field in Firefox (87.0 64 bit), I noticed the arrow keys don't repeat when held down. Other keys do just fine, but the arrow keys, when held down, move one position, there's a very slight delay, and it moves one more position and then stops; no auto-repeating. I've restarted Firefox without addons and that didn't help. I've also toggled the Auto-scrolling and smooth scrolling options too.

This makes editing long text fields a real pain. I don't see this problem in any PC-based apps and arrows keys do repeat OK in Chrome and Edge. It appears to be a Firefox issue.

Any ideas? Many thanks!!!!!

- Bob

Asked by drbobjr 10 hours ago

Screen flashes to white when scrolling.

I have noticed a recently developing event in Firefox. When scrolling through some pages such as LinkedIn or Facebook, my screen will suddenly go completely white. It s… (read more)

I have noticed a recently developing event in Firefox. When scrolling through some pages such as LinkedIn or Facebook, my screen will suddenly go completely white. It seems to freeze for a second or two, then comes back. This has only been happening for about the past two or three weeks, so since about 1 April 2021 for time reference. My About Firefox shows I am running 87.0 (64-bit) and it is up to date. I completely uninstalled - including the deletion of the Mozilla folders per info on the web - then reinstalled. This did not correct the issue. I also run Chrome and do not experience this issue when using it.

Asked by stevenkimbell 11 hours ago

trying to open my webcam

I have entered the website i wish to use and logged in all goes well until i try to open my webcam and go live. i have a webcam its always worked but its now saying to me… (read more)

I have entered the website i wish to use and logged in all goes well until i try to open my webcam and go live. i have a webcam its always worked but its now saying to me Chat server authentication failed please contact us. Im confused it always worked

Asked by manyoladoshi 14 hours ago

Paste issue

Since a few months, I have noticed a nasty issue with pasting on some websites. For example, when I try to paste text in the body with CTRL/CMD+V on the web interface of… (read more)

Since a few months, I have noticed a nasty issue with pasting on some websites.

For example, when I try to paste text in the body with CTRL/CMD+V on the web interface of my email provider (mailbox.org), the cursor is moved to the end of the message but no text is copied. Right-click > paste does work, and no issue for the recipient and subject fields. The issue is only when writing emails in HTML; plain text works fine. Another example, when editing a protocol on protocols.io, hitting CTRL/CMD+V leads to a blank page, which needs to be refreshed (but the text has not been pasted). There is no option to do it via right-click > paste there. Same issue when submitting a manuscript on PCI Paleontology.

All these examples are specific to Firefox (I have the latest version installed); it is reproducible both on macOS 10.15 and Win10. It doesn't seem to be due to add-ons (I tried to deactivate them one by one and nothing changed). There is no problem with Chrome-based browsers (e.g. Iridium) or Safari.

Is it maybe some configuration or something? Any idea?

Asked by i 1 week ago

Last reply by i 14 hours ago

Firefox won't work Win10 Pro

Used firefox on every PC ive built....never had this happen. Crashes on startup every time. Tried reformat, installing several times, etc. Win10 is fresh install with lat… (read more)

Used firefox on every PC ive built....never had this happen. Crashes on startup every time. Tried reformat, installing several times, etc. Win10 is fresh install with latest updates.


Have submitted a million of the crash reports.

Asked by ateel7 1 day ago

Last reply by ateel7 1 day ago

about opening word files(*.doc)

When opening word files(*.doc) on the server with Firefox browser, it is very slow, but other browsers open word very quickly. Is this a bug in the design of the firebox … (read more)

When opening word files(*.doc) on the server with Firefox browser, it is very slow, but other browsers open word very quickly. Is this a bug in the design of the firebox browser?

Asked by 1346942613 1 day ago

Last reply by 1346942613 1 day ago

Pinned facebook tabs unpin and reload automatically on browser restart

I've facebook container addon installed https://addons.mozilla.org/en-US/firefox/addon/facebook-container/. If I pin any facebook tab and restart the browser, all the fac… (read more)

I've facebook container addon installed https://addons.mozilla.org/en-US/firefox/addon/facebook-container/. If I pin any facebook tab and restart the browser, all the facebook tabs unpin and automatically reload themselves. browser.sessionstore.restore_pinned_tabs_on_demand is already set to true.

This is pretty annoying. How do I get rid of this?

Asked by Nikhil 1 day ago

YouTube and random no sound, Raspberry Pi

Raspberry Pi 4B Raspberry Pi OS -- Fully updated OS. Firefox 78.9.0esr (32-bit) -- Latest and greatest for Raspberry Pi OS. Some videos I am getting no sound. I try the … (read more)

Raspberry Pi 4B Raspberry Pi OS -- Fully updated OS. Firefox 78.9.0esr (32-bit) -- Latest and greatest for Raspberry Pi OS.

Some videos I am getting no sound. I try the effected videos in Chromium for Raspberry Pi OS and it works fine. I read about a possible fix and tried disabling hardware acceleration with no effect. I also blew out all the cookies,. history and stored site data. Each attempt closing and reopening Firefox. Same thing on the same videos, no sound in Firefox but fine in Chromium.

Any tips or pointers?

Asked by Tabatchnick 2 days ago

Last reply by Tabatchnick 1 day ago

Mini Firefox icon on end of dock in macOS Big Sur 11.2.3

Long story short... this is my first Mac (MacBook Pro 13-inch, M1, 2020). I noticed that there is a mini Firefox icon at the end of my dock before the "stack" downloads f… (read more)

Long story short... this is my first Mac (MacBook Pro 13-inch, M1, 2020). I noticed that there is a mini Firefox icon at the end of my dock before the "stack" downloads folder and trash icon. I was wondering if anyone else has the same issue. Restarting seems to help but comes back, removing Firefox from the dock also seems to help but once it's back in there it comes back after a while.

Asked by Jorge Hernandez 2 days ago

Media keys captured by Firefox

Hi, For a couple weeks now, whenever Firefox is open, I can't control other software with the keyboard media keys. I had fixed the problem before by setting the flag medi… (read more)

Hi, For a couple weeks now, whenever Firefox is open, I can't control other software with the keyboard media keys. I had fixed the problem before by setting the flag media.hardwaremediakeys.enabled to false, which worked for a while. But now it doesn't. I also tried setting dom.media.mediasession.enabled to false, and all 4 combinatios of the 2 flags. Firefox keeps capturing media keys. Tried disabling every addon shortcut too, as some other webpage recommended.

Note that it happens even if there's nothing in firefox, ie 1 tab on the "home" screen. Close Firefox and Spotify starts responding. Open Firefox and it stops working.

Using Firefox v87.0

Asked by gorigori95 2 days ago

Last reply by gorigori95 2 days ago

Firefox freezing up

Firefox recently started freezing up on various websites. I thought the move to Rust was supposed to make Firefox more reliable, but in fact if one tab has problems with … (read more)

Firefox recently started freezing up on various websites. I thought the move to Rust was supposed to make Firefox more reliable, but in fact if one tab has problems with JavaScript, then the ENTIRE Firefox app freezes up.

Firefox 87, Windows 10.

Example triggering website for my machine:

https://www.pcmag.com/how-to/no-kindle-needed-10-free-ebook-reader-apps-for-your-phone-or-tablet

Asked by mcandre 2 days ago

Problem with firefox with using embedded links and pictures showing up

My current PC Firefox Browser (ver 87.0 (64 bit and up to date) has the following problem. For example when I go to Yahoo.com and pick a news story, there is always a lin… (read more)

My current PC Firefox Browser (ver 87.0 (64 bit and up to date) has the following problem.

For example when I go to Yahoo.com and pick a news story, there is always a link.

I press link and nothing happens. All the pictures don't show up in link.

However, when I open a new Firefox Browser in a new tab or even in a Chrome browser it works.

What is the solution to fix this?

Thank you.

Asked by Alan123 2 days ago

Firefox crashes when I start it. Won't open at all

I uninstalled Firefox and reinstalled. Same problem. Crash ID: bp-536abca7-34b7-4b32-adfa-217ba0210414 Thank you. I am working on my desktop so I may not be able to … (read more)

I uninstalled Firefox and reinstalled. Same problem. Crash ID: bp-536abca7-34b7-4b32-adfa-217ba0210414 Thank you. I am working on my desktop so I may not be able to respond immediately if you have questions.

Asked by garshell 2 days ago

Menubar and drop down menus are pink

macBook pro M1 13" OS11.2.2. When in Firefox browser (87.0) the menu bar and drop down menus are in pink as are portions of the page. How do I change the color? Hate pink… (read more)

macBook pro M1 13" OS11.2.2. When in Firefox browser (87.0) the menu bar and drop down menus are in pink as are portions of the page. How do I change the color? Hate pink.

Asked by ky1 2 days ago

Tabs are constantly crashing

My tabs are constantly - several times a day, every day - crashing. I'm not watching any videos, I've tried a clean (deleted profile folder) install, and turning off hard… (read more)

My tabs are constantly - several times a day, every day - crashing. I'm not watching any videos, I've tried a clean (deleted profile folder) install, and turning off hardware acceleration. It's not anything attached to my profile, as I sync with a 2nd computer that has zero crash issues.

Asked by alifreeman93 3 days ago

Last reply by alifreeman93 3 days ago