8000 [Bug]: Microsoft Office 365 invalid input · Issue #1578 · Floorp-Projects/Floorp · GitHub
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[Bug]: Microsoft Office 365 invalid input #1578

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Technetium1 opened this issue Jan 27, 2025 · 0 comments
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Open
9 tasks done

[Bug]: Microsoft Office 365 invalid input #1578

Technetium1 opened this issue Jan 27, 2025 · 0 comments
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bug Something isn't working P5 Developers do not respond, only patches are welcome unconfirmed Developer has not yet confirmed.

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Pre-Submission Checklist

  • I have checked the existing/closed issues to ensure this issue has not already been reported.
  • I am using the latest supported version of the browser.
  • I have tried disabling all browser extensions/add-ons to rule out interference from these.
  • I have tried clearing the browser cache and cookies.
  • I have checked with a new profile and the issue still occurs.
  • I have provided detailed step-by-step instructions on how to reproduce the issue.
  • I have included relevant screenshots or console outputs.
  • I have checked that this problem is not occurring in the latest version of Firefox ESR.
  • This issue is specific to this browser and does not occur in other browsers.

Bug Summary

Disclaimer: This may be 2 separate but related issues

When attempting to use Office 365 applications such as Outlook, OneNote, or Word; non-ASCII[?] keystrokes are not properly being recognized. Input will either be discarded, not appear, not paste, or will add a space and move the cursor to the left. This makes the entire Office 365 suite effectively unusable due to inconsistent inputs.

Microsoft officially supports Firefox for Microsoft 365 & for Outlook, so there is no reason that this should not function. This claim of support removes concern for UA spoof as previously mentioned in #237

This has been replicated on Floorp 11.22.0, and Firedragon 11.22.0 with both Arch Linux and Windows 11, but the behaviors are not exactly identical, aside from inability to paste.

Reproduction Steps

  1. Open browser
  2. Visit an Office 365 application such as
  1. Login is required
  2. Attempt to type somewhere, or paste input to any field, especially accented characters

Expected Behavior

Inputs should work consistently on any field, and pasting should always be possible regardless of locale or clipboard content.

Actual Behavior

  • Notice in console from paste attempts:
clipboard.read() has been overwriten with a no-op. See https://bugzilla.mozilla.org/show_bug.cgi?id=1815733#c13 for details.
  • Failure to paste using CTRL+V or Right Click -> Paste
  • Accented character input causes cursor to move left and occasionally insert a trailing space
  • Some accented keys appear to not register at all, or register as a single space
  • Inserting unicode via compose key (equivalent to Windows ALT code) does not always trigger the extra space
  • Upon first press of an accent key, this error is logged in console:
This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”.

Screenshots

Screenshots are available in this directly related issue:
dr460nf1r3/firedragon-browser#122

Paste failure:

Image

Browser Version

11.22.0

Operating System

Arch Linux & Windows 11

Additional Context

  • Tested with:
    • Troubleshoot mode
    • new profile
    • no extensions
    • Enhanced Tracking Protection disabled
    • Firefox ESR 128.6.0esr
  • It is not possible to test each application without an active 365 subscription
  • OneNote can be freely used for testing after login
@Technetium1 Technetium1 added the bug Something isn't working label Jan 27, 2025
@github-actions github-actions bot added P5 Developers do not respond, only patches are welcome unconfirmed Developer has not yet confirmed. labels Jan 27, 2025
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