Ed, it sounds like you're on the right track by pinpointing the potential culprit. Narrowing down whether the issue is due to the browser or an extension is key. Here’s a quick recap of what to check:
- Which Browser?
Sometimes Gmail behaves uniquely on certain browsers. For instance, if you're using Edge and notice issues like missing checkboxes, try switching to Firefox (especially in dark mode) to see if the problem persists.
- Extensions:
Content blockers or style-altering extensions (like uBlock Origin or dark mode extensions) can sometimes block certain Gmail elements. Even if they're disabled, residual settings might make a difference—so it's worth clearing your cache and cookies and then testing again.
- Settings and Flags:
Check if any experimental settings or browser flags (e.g., at edge://flags
for Edge) have been enabled that might interfere with Gmail's layout.
If you've already ruled out extensions and cache issues yet the problem persists in a specific browser, it might just be a rendering quirk in that browser. Your approach of using Firefox for Gmail, while keeping Edge for other tasks, is both practical and effective.
Keep on troubleshooting—your methodical approach will pay off, and you'll get Gmail displaying just how it should! If you have more updates or need further help, feel free to share.