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reddit blocks Firefox

  • 9 replies
  • 3 have this problem
  • 123 views
  • Last reply by Paul

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macOS 15.6 Firefox 141.0.3 - my preferred browser

I've seen a number of posts regarding this problem since the Firefox 141 update. I've tried a number of suggestions, although my problem seems slightly different.

I can apparently login to reddit OK but when I try to access a subreddit thread, a warning comes up - see image.

I have cleared Firefox site data, cookies, cached files, etc - problem remains.

I have restarted Firefox in Troubleshooting mode - problem remains, so not an extension.

However, https://old.reddit.com has no problems with Firefox, lets me access threads, etc and comment.

No problems accessing reddit with Safari or DuckDuckGo browser.

macOS 15.6 Firefox 141.0.3 - my preferred browser I've seen a number of posts regarding this problem since the Firefox 141 update. I've tried a number of suggestions, although my problem seems slightly different. I can apparently login to reddit OK but when I try to access a subreddit thread, a warning comes up - see image. I have cleared Firefox site data, cookies, cached files, etc - problem remains. I have restarted Firefox in Troubleshooting mode - problem remains, so not an extension. However, https://old.reddit.com has no problems with Firefox, lets me access threads, etc and comment. No problems accessing reddit with Safari or DuckDuckGo browser.
Attached screenshots

Modified by UKLarry

Chosen solution

This does not look it was an issue with Firefox as Reddit appears to have fixed the problem at their end.

You should find it is working okay now.

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All Replies (9)

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Hello, do you still get the issue? I can't reproduce anymore although I saw it 30min or so ago.

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Konstantina Papadea said

Hello, do you still get the issue? I can't reproduce anymore although I saw it 30min or so ago.

Still there …

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Same here on Windows 11 with Firefox 141.0.3. Reddit loads the homepage, but the moment I click into a post, I get hit with the same warning. Switched to another browser just to double check works fine there. Seems like a compatibility issue Reddit needs to fix.

Modified by Harry kane Kane

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Harry kane Kane said

Same here on Windows 11 with Firefox 141.0.3. Reddit loads the homepage, but the moment I click into a post, I get hit with the same warning. Switched to another browser just to double check works fine there. Seems like a compatibility issue Reddit needs to fix.

Well, as I can access reddit without any problem on Safari and DuckDuckGo browsers and it's only become an issue with the upgrade to Friefox 141, I say it's more an issue for Firefox/Mozilla to fix …

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Hi Larry

Do you have any add-ons installed in Firefox?

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I can reproduce it on https://www.reddit.com/r/firefox/comments/1mquf42/fennec_vs_iceraven_vs_firefox_for_better/

I just tested it with mozRegression, it doesn't have anything to do with the recent update nor with extensions. The error message is there in every version since today.

Modified by TyDraniu

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Thanks everyone, I reported a webcompatability report https://webcompat.com/issues/171923

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Paul said

Hi Larry Do you have any add-ons installed in Firefox?

Yes but as I said in my initial post, I have the same problem in Troubleshooting mode with all addons disabled.

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Chosen Solution

This does not look it was an issue with Firefox as Reddit appears to have fixed the problem at their end.

You should find it is working okay now.

Helpful?

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