On Thu, Jun 26, 2025 at 9:06 PM Leonid G via Wikitech-l
<wikitech-l@lists.wikimedia.org> wrote:
>
> Hi Dev and all the others!
>
> I’ve found the last working uaswitcher-1.4.67.xpi version of the file (from 
> here: https://addons.mozilla.org/en-US/firefox/addon/uaswitcher/versions/), 
> but Firefox gives me the message: The add-on downloaded from this site could 
> not be installed because it appears to be corrupt. I even tried to load it as 
> a temporary add-on – same result. What should I do?
>
> On a clear morning’s mind I’m very skeptical if this tool will solve my 
> issue. Wikipedia is not actively blocking the use of my browser. Its CSS 
> seems to have been changed so the pictures and maps do not show up.

Your User-Agent is old. A lot of the misbehaving web crawlers we are
seeing these days spoof very old Firefox and Chrome User-Agents. I am
99.9% certain that your traffic is ending up in a low rate limit
bucket tracked at our CDN edge because of the relative age of your web
browser.

Bryan
-- 
Bryan Davis                                        Wikimedia Foundation
Principal Software Engineer                               Boise, ID USA
[[m:User:BDavis_(WMF)]]                                      irc: bd808
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