Updating New Tab extension in Ubuntu

So you are talking about a Mac ?? The Tags on this post sat Windows 11 ?

and

how did you for this extension like those I have installed myself?

via the extension option or via a download and then install

The "home / new tab" system addon is updated via "remote improvements" functionality IIUC. Check both of your devices are set to allow the same remote features in settings. (If you've disabled Manage remote improvements settings in Firefox the version will only update with browser updates.)

The "home / new tab" system addon is updated via "remote improvements" functionality IIUC. Check both of your devices are set to allow the same remote features in settings. (If you've disabled Manage remote improvements settings in Firefox the version will only update with browser updates.)

I tried this, but all that happened when unchecking this is I saw the New Tab extension apparently go away from what Nightly Tester Tools copies out when getting the list of installed extensions. After reenabling this setting, the same older version appeared, again.

My suspicion is that the coders do not update the New Tab system extension at the same rate for both Ubuntu and Windows. The main parts of the browsers may be at the same rev level, however New Tab may be updated in Windows, too, but it lags behind for at least Ubuntu.

The XPI is the same (=there's only one build to ship, platform agnostic). The rule for rollout might be different. If you REALLY really REALLY need to know I can try picking apart the rollout recipes to see if there's anything platform specific, but I'm leaning more towards the timing is just different per profile unique identifier, than anything else.

How much outdated you get these? Comparing the default version shipped vs. what you get served remotely for Win vs. for Linux (version numbers)?

This rollout ships New Tab version 156.1.20260818.43226 to the Release channel for v154:

 browserSettings.update.channel in ["release"] &&
 (version|versionCompare('156.*') <= 0) && (version|versionCompare('154.!') >= 0) &&
 (experiment.slug in activeRollouts) || (!('browser.newtabpage.trainhopAddon.version'|preferenceIsUserSet))

So there's no platform targeting.

This rollout ships New Tab version 156.1.20260818.43226 to the Release channel for v154: browserSettings.update.channel in ["release"] && (version|versionCompare('156.*') <= 0) && (version|versionCompare('154.!') >= 0) && (experiment.slug in activeRollouts) || (!('browser.newtabpage.trainhopAddon.version'|preferenceIsUserSet)) So there's no platform targeting.

Given this, it appears that there is an issue with how the package or this component is handled by Ubuntu.

I genuinely do not know if snap–packaged distribution from Canonical differs in some of those delivery channels, or whether they actively opt them out or manage them in some way.

There's definitely folks that could shed some light on this if you fancy dropping by wiki.mozilla.org/Matrix chat — there's #linux:mozilla.org room.