Tumblr
Tumblr Login Failure with 403 Forbidden Error on Firefox-Based Browsers
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Impact: I can't log on Tumblr on my browser (Firefox based). It gives me a 403 Forbidden screen.
From the original report
“I can't log on Tumblr on my browser (Firefox based). It gives me a 403 Forbidden screen.”
Details & sources
- How received
- Imported from Bluesky
- Source published
- Oct 14, 2026
- Observed
- Unknown
- Added to CleanApp
- Oct 14, 2026
- Product connection
- Affected product or place
- Original issue status
- Unknown
- Resolution
- Unknown
- Verification
- Not independently reproduced
Source count unknown
Why this source type: The author personally describes encountering a 403 Forbidden screen when attempting to log in to Tumblr on a Firefox-based browser.
CleanApp AI summary
Tumblr Login Failure with 403 Forbidden Error on Firefox-Based Browsers: Users are encountering a 403 Forbidden error screen when attempting to log into Tumblr via Firefox-based browsers. The issue is isolated to non-Chromium environments, while Chromium-based browsers such as Edge function as expected.
Report counts are not affected-user counts. A closed original issue does not confirm a fix.
Public ID: rpt_jhCJ7RZYqCX3ucYWeJ9FiQ